./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i --full-output -ea --architecture 32bit -------------------------------------------------------------------------------- Checking for ERROR reachability Using default analysis Version 8bd4bc60 Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx12G -Xms1G -ea -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerReach.xml -i ../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G ! call(__VERIFIER_error())) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash 642405405aa5e7ddbff2aee2426174244487e2b3 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... Execution finished normally Writing output log to file Ultimate.log Result: TRUE --- Real Ultimate output --- This is Ultimate 0.1.25-8bd4bc6 [2020-07-28 21:42:59,811 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:42:59,813 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:42:59,828 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:42:59,829 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:42:59,831 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:42:59,833 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:42:59,837 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:42:59,841 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:42:59,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:42:59,850 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:42:59,852 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:42:59,852 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:42:59,858 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:42:59,859 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:42:59,860 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:42:59,861 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:42:59,862 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:42:59,864 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:42:59,865 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:42:59,867 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:42:59,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:42:59,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:42:59,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:42:59,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:42:59,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:42:59,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:42:59,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:42:59,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:42:59,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:42:59,876 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:42:59,877 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:42:59,877 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:42:59,878 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:42:59,879 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:42:59,880 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:42:59,880 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:42:59,881 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:42:59,881 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:42:59,882 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:42:59,883 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:42:59,883 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:42:59,898 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:42:59,899 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:42:59,900 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:42:59,900 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:42:59,901 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:42:59,901 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:42:59,901 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:42:59,901 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:42:59,902 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:42:59,902 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:42:59,902 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:42:59,903 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:42:59,903 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:42:59,903 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:42:59,903 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:42:59,904 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:42:59,904 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:42:59,904 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:42:59,904 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:42:59,905 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:42:59,905 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:42:59,905 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:42:59,906 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:42:59,906 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:42:59,906 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:42:59,906 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:42:59,907 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:42:59,907 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:42:59,907 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:42:59,907 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 -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G ! 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 -> 642405405aa5e7ddbff2aee2426174244487e2b3 [2020-07-28 21:43:00,185 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:43:00,202 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:43:00,205 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:43:00,207 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:43:00,207 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:43:00,208 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i [2020-07-28 21:43:00,270 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497df41a8/38d3dae1d8ed4e0db70e2088fd1e603c/FLAGbbedf8aa3 [2020-07-28 21:43:00,814 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:43:00,814 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe028_tso.oepc.i [2020-07-28 21:43:00,844 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497df41a8/38d3dae1d8ed4e0db70e2088fd1e603c/FLAGbbedf8aa3 [2020-07-28 21:43:01,110 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/497df41a8/38d3dae1d8ed4e0db70e2088fd1e603c [2020-07-28 21:43:01,116 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:43:01,121 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:43:01,127 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:43:01,128 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:43:01,132 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:43:01,133 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:01,137 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@47ad77c6 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01, skipping insertion in model container [2020-07-28 21:43:01,137 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:01,148 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:43:01,211 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:43:01,717 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:43:01,734 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:43:01,830 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:43:01,928 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:43:01,928 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01 WrapperNode [2020-07-28 21:43:01,929 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:43:01,929 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:43:01,930 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:43:01,930 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:43:01,937 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:01,956 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:01,982 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:43:01,983 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:43:01,983 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:43:01,983 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:43:01,990 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:01,991 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:01,994 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:01,995 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:02,005 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:02,008 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:02,010 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... [2020-07-28 21:43:02,014 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:43:02,015 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:43:02,015 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:43:02,016 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:43:02,017 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/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 [2020-07-28 21:43:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:43:02,095 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:43:02,096 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:43:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:43:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:43:02,097 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:43:02,097 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:43:02,098 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:43:02,098 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:43:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:43:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:43:02,099 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:43:02,099 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:43:02,101 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2020-07-28 21:43:02,588 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:43:02,588 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:43:02,592 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:43:02 BoogieIcfgContainer [2020-07-28 21:43:02,593 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:43:02,594 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:43:02,594 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:43:02,598 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:43:02,598 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:43:01" (1/3) ... [2020-07-28 21:43:02,599 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251058d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:43:02, skipping insertion in model container [2020-07-28 21:43:02,599 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:43:01" (2/3) ... [2020-07-28 21:43:02,600 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@251058d4 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:43:02, skipping insertion in model container [2020-07-28 21:43:02,600 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:43:02" (3/3) ... [2020-07-28 21:43:02,602 INFO L109 eAbstractionObserver]: Analyzing ICFG safe028_tso.oepc.i [2020-07-28 21:43:02,613 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:43:02,613 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:43:02,621 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:43:02,622 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:43:02,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,655 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,656 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,656 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,657 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,658 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,658 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,658 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,659 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,660 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,660 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,660 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,661 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,665 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,666 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,666 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,675 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,677 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,677 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,680 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,680 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,680 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:43:02,696 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:43:02,719 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:43:02,719 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:43:02,719 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:43:02,720 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:43:02,720 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:43:02,720 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:43:02,720 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:43:02,720 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:43:02,736 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:43:02,738 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:43:02,785 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:43:02,786 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:43:02,791 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:43:02,794 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:43:02,819 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:43:02,819 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:43:02,820 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:43:02,822 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-07-28 21:43:02,824 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:43:05,297 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2037 [2020-07-28 21:43:05,297 INFO L214 etLargeBlockEncoding]: Total number of compositions: 54 [2020-07-28 21:43:05,306 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-07-28 21:43:05,348 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-07-28 21:43:05,350 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-07-28 21:43:05,370 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:43:05,372 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:43:05,379 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:43:05,379 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:43:05,385 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:43:05,385 INFO L82 PathProgramCache]: Analyzing trace with hash 2007579917, now seen corresponding path program 1 times [2020-07-28 21:43:05,396 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:43:05,396 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [470322995] [2020-07-28 21:43:05,397 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:43:05,532 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:43:05,663 INFO L280 TraceCheckUtils]: 0: Hoare triple {532#true} [222] ULTIMATE.startENTRY-->L767: Formula: (let ((.cse0 (store |v_#valid_61| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26| 1) |v_#valid_59|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26|) |v_ULTIMATE.start_main_~#t2467~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2467~0.offset_18|) (= 0 v_~__unbuffered_p0_EAX~0_54) (= 0 v_~y~0_25) (= v_~__unbuffered_p2_EBX~0_51 0) (= 0 v_~x~0_41) (= 0 |v_#NULL.offset_4|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2467~0.base_26| 4) |v_#length_21|) (= v_~__unbuffered_cnt~0_167 0) (= 0 v_~main$tmp_guard0~0_45) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2467~0.base_26|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_46) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_44))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_15|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, ULTIMATE.start_main_~#t2467~0.base=|v_ULTIMATE.start_main_~#t2467~0.base_26|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_19|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_44, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_45, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_15|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_18|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_54, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_59|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_46, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_167, ~y~0=v_~y~0_25, ULTIMATE.start_main_~#t2467~0.offset=|v_ULTIMATE.start_main_~#t2467~0.offset_18|, ~x~0=v_~x~0_41} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_~#t2467~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2469~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2467~0.offset, ~x~0] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:43:05,664 INFO L280 TraceCheckUtils]: 1: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [162] L767-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:43:05,665 INFO L280 TraceCheckUtils]: 2: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [194] L767-1-->L769: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9|) |v_ULTIMATE.start_main_~#t2468~0.offset_9| 1))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2468~0.base_9| 4) |v_#length_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2468~0.base_9|) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9| 1) |v_#valid_27|) (= 0 |v_ULTIMATE.start_main_~#t2468~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_10|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_9|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:43:05,666 INFO L280 TraceCheckUtils]: 3: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [164] L769-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:43:05,667 INFO L280 TraceCheckUtils]: 4: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [195] L769-1-->L771: Formula: (and (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2469~0.base_11| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2469~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11|) |v_ULTIMATE.start_main_~#t2469~0.offset_10| 2)) |v_#memory_int_11|) (= 0 |v_ULTIMATE.start_main_~#t2469~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2469~0.base, #length] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:43:05,668 INFO L280 TraceCheckUtils]: 5: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [166] L771-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:43:05,669 INFO L280 TraceCheckUtils]: 6: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [215] L771-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24| (mod v_~main$tmp_guard0~0_37 256)) (let ((.cse0 (= v_~__unbuffered_cnt~0_141 3))) (or (and (= 1 v_~main$tmp_guard0~0_37) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_37))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_37} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:43:05,670 INFO L280 TraceCheckUtils]: 7: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [218] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_~main$tmp_guard1~0_34) (= 1 v_~__unbuffered_p2_EAX~0_36) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 0 v_~__unbuffered_p0_EAX~0_41) (= (mod v_~main$tmp_guard1~0_34 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|) (= v_~__unbuffered_p2_EBX~0_41 0) (= v_ULTIMATE.start_assume_abort_if_not_~cond_37 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_37))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_37, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {533#false} is VALID [2020-07-28 21:43:05,673 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:43:05,674 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [470322995] [2020-07-28 21:43:05,675 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:43:05,676 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:43:05,677 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2055334050] [2020-07-28 21:43:05,683 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:43:05,685 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:43:05,689 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:43:05,708 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 8 edges. 8 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:05,708 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:43:05,708 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:43:05,719 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:43:05,720 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:43:05,722 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-07-28 21:43:05,838 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:05,839 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-07-28 21:43:05,839 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:43:05,840 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:43:05,840 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:43:05,841 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:43:05,843 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:43:05,843 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:43:05,844 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:43:05,844 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:43:05,889 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:05,920 INFO L225 Difference]: With dead ends: 214 [2020-07-28 21:43:05,920 INFO L226 Difference]: Without dead ends: 166 [2020-07-28 21:43:05,922 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 1 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:43:05,945 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-07-28 21:43:05,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,968 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,970 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,971 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,972 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,973 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,974 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,975 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,976 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,977 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,978 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,979 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,980 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,981 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,982 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,983 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,984 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,985 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,986 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,987 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,988 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,989 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,990 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,991 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,992 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,993 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,994 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,995 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,996 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,997 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,998 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:05,999 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,000 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,001 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,002 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,003 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,004 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,005 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,006 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,013 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-07-28 21:43:06,013 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:43:06,014 INFO L82 GeneralOperation]: Start isEquivalent. First operand 166 states. Second operand 166 states. [2020-07-28 21:43:06,014 INFO L74 IsIncluded]: Start isIncluded. First operand 166 states. Second operand 166 states. [2020-07-28 21:43:06,015 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 166 states. [2020-07-28 21:43:06,032 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,032 INFO L93 Difference]: Finished difference Result 166 states and 441 transitions. [2020-07-28 21:43:06,032 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-07-28 21:43:06,037 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:06,037 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:06,038 INFO L74 IsIncluded]: Start isIncluded. First operand 166 states. Second operand 166 states. [2020-07-28 21:43:06,038 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 166 states. [2020-07-28 21:43:06,065 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,065 INFO L93 Difference]: Finished difference Result 166 states and 441 transitions. [2020-07-28 21:43:06,066 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-07-28 21:43:06,071 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:06,071 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:06,072 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:43:06,072 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:43:06,072 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-07-28 21:43:06,090 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-07-28 21:43:06,092 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-07-28 21:43:06,092 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:43:06,092 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-07-28 21:43:06,093 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:43:06,093 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-07-28 21:43:06,097 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:43:06,097 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:43:06,098 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:43:06,100 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:43:06,100 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:43:06,100 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:43:06,101 INFO L82 PathProgramCache]: Analyzing trace with hash 2105434478, now seen corresponding path program 1 times [2020-07-28 21:43:06,101 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:43:06,101 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [22519426] [2020-07-28 21:43:06,101 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:43:06,166 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:43:06,242 INFO L280 TraceCheckUtils]: 0: Hoare triple {1415#true} [222] ULTIMATE.startENTRY-->L767: Formula: (let ((.cse0 (store |v_#valid_61| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26| 1) |v_#valid_59|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26|) |v_ULTIMATE.start_main_~#t2467~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2467~0.offset_18|) (= 0 v_~__unbuffered_p0_EAX~0_54) (= 0 v_~y~0_25) (= v_~__unbuffered_p2_EBX~0_51 0) (= 0 v_~x~0_41) (= 0 |v_#NULL.offset_4|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2467~0.base_26| 4) |v_#length_21|) (= v_~__unbuffered_cnt~0_167 0) (= 0 v_~main$tmp_guard0~0_45) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2467~0.base_26|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_46) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_44))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_15|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, ULTIMATE.start_main_~#t2467~0.base=|v_ULTIMATE.start_main_~#t2467~0.base_26|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_19|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_44, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_45, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_15|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_18|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_54, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_59|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_46, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_167, ~y~0=v_~y~0_25, ULTIMATE.start_main_~#t2467~0.offset=|v_ULTIMATE.start_main_~#t2467~0.offset_18|, ~x~0=v_~x~0_41} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_~#t2467~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2469~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2467~0.offset, ~x~0] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:43:06,246 INFO L280 TraceCheckUtils]: 1: Hoare triple {1417#(= 0 ~x~0)} [162] L767-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:43:06,247 INFO L280 TraceCheckUtils]: 2: Hoare triple {1417#(= 0 ~x~0)} [194] L767-1-->L769: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9|) |v_ULTIMATE.start_main_~#t2468~0.offset_9| 1))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2468~0.base_9| 4) |v_#length_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2468~0.base_9|) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9| 1) |v_#valid_27|) (= 0 |v_ULTIMATE.start_main_~#t2468~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_10|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_9|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:43:06,248 INFO L280 TraceCheckUtils]: 3: Hoare triple {1417#(= 0 ~x~0)} [164] L769-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:43:06,251 INFO L280 TraceCheckUtils]: 4: Hoare triple {1417#(= 0 ~x~0)} [195] L769-1-->L771: Formula: (and (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2469~0.base_11| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2469~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11|) |v_ULTIMATE.start_main_~#t2469~0.offset_10| 2)) |v_#memory_int_11|) (= 0 |v_ULTIMATE.start_main_~#t2469~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2469~0.base, #length] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:43:06,252 INFO L280 TraceCheckUtils]: 5: Hoare triple {1417#(= 0 ~x~0)} [166] L771-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:43:06,252 INFO L280 TraceCheckUtils]: 6: Hoare triple {1417#(= 0 ~x~0)} [215] L771-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24| (mod v_~main$tmp_guard0~0_37 256)) (let ((.cse0 (= v_~__unbuffered_cnt~0_141 3))) (or (and (= 1 v_~main$tmp_guard0~0_37) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_37))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_37} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:43:06,253 INFO L280 TraceCheckUtils]: 7: Hoare triple {1417#(= 0 ~x~0)} [185] P2ENTRY-->L744: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~x~0_12 v_~__unbuffered_p2_EAX~0_12)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {1418#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:43:06,255 INFO L280 TraceCheckUtils]: 8: Hoare triple {1418#(= 0 ~__unbuffered_p2_EAX~0)} [218] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_~main$tmp_guard1~0_34) (= 1 v_~__unbuffered_p2_EAX~0_36) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 0 v_~__unbuffered_p0_EAX~0_41) (= (mod v_~main$tmp_guard1~0_34 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|) (= v_~__unbuffered_p2_EBX~0_41 0) (= v_ULTIMATE.start_assume_abort_if_not_~cond_37 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_37))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_37, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1416#false} is VALID [2020-07-28 21:43:06,256 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:43:06,256 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [22519426] [2020-07-28 21:43:06,256 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:43:06,257 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:43:06,257 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [938123577] [2020-07-28 21:43:06,259 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:43:06,259 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:43:06,259 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:43:06,275 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 9 edges. 9 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:06,276 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:43:06,276 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:43:06,276 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:43:06,276 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:43:06,277 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-07-28 21:43:06,367 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,368 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-07-28 21:43:06,368 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:43:06,368 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:43:06,368 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:43:06,368 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:06,369 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:43:06,369 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:06,370 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:43:06,370 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 34 transitions. [2020-07-28 21:43:06,413 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:06,418 INFO L225 Difference]: With dead ends: 202 [2020-07-28 21:43:06,418 INFO L226 Difference]: Without dead ends: 130 [2020-07-28 21:43:06,419 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:43:06,421 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-07-28 21:43:06,427 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,428 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,429 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,430 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,431 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,432 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,433 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,434 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,435 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,436 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,437 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,438 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,439 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,440 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,441 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,442 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,443 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,444 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,445 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,446 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,447 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,448 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,449 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,450 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,451 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,452 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,453 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,454 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,455 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,458 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-07-28 21:43:06,459 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:43:06,459 INFO L82 GeneralOperation]: Start isEquivalent. First operand 130 states. Second operand 130 states. [2020-07-28 21:43:06,459 INFO L74 IsIncluded]: Start isIncluded. First operand 130 states. Second operand 130 states. [2020-07-28 21:43:06,459 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 130 states. [2020-07-28 21:43:06,473 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,474 INFO L93 Difference]: Finished difference Result 130 states and 322 transitions. [2020-07-28 21:43:06,474 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-07-28 21:43:06,474 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:06,475 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:06,475 INFO L74 IsIncluded]: Start isIncluded. First operand 130 states. Second operand 130 states. [2020-07-28 21:43:06,475 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 130 states. [2020-07-28 21:43:06,483 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,483 INFO L93 Difference]: Finished difference Result 130 states and 322 transitions. [2020-07-28 21:43:06,484 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-07-28 21:43:06,484 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:06,484 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:06,488 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:43:06,488 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:43:06,488 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-07-28 21:43:06,496 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-07-28 21:43:06,497 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-07-28 21:43:06,497 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:43:06,498 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-07-28 21:43:06,498 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:43:06,498 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-07-28 21:43:06,499 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:43:06,499 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:43:06,499 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:43:06,499 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:43:06,500 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:43:06,500 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:43:06,500 INFO L82 PathProgramCache]: Analyzing trace with hash 857303980, now seen corresponding path program 1 times [2020-07-28 21:43:06,501 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:43:06,501 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1900283133] [2020-07-28 21:43:06,501 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:43:06,576 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:43:06,652 INFO L280 TraceCheckUtils]: 0: Hoare triple {2145#true} [222] ULTIMATE.startENTRY-->L767: Formula: (let ((.cse0 (store |v_#valid_61| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26| 1) |v_#valid_59|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26|) |v_ULTIMATE.start_main_~#t2467~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2467~0.offset_18|) (= 0 v_~__unbuffered_p0_EAX~0_54) (= 0 v_~y~0_25) (= v_~__unbuffered_p2_EBX~0_51 0) (= 0 v_~x~0_41) (= 0 |v_#NULL.offset_4|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2467~0.base_26| 4) |v_#length_21|) (= v_~__unbuffered_cnt~0_167 0) (= 0 v_~main$tmp_guard0~0_45) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2467~0.base_26|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_46) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_44))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_15|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, ULTIMATE.start_main_~#t2467~0.base=|v_ULTIMATE.start_main_~#t2467~0.base_26|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_19|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_44, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_45, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_15|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_18|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_54, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_59|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_46, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_167, ~y~0=v_~y~0_25, ULTIMATE.start_main_~#t2467~0.offset=|v_ULTIMATE.start_main_~#t2467~0.offset_18|, ~x~0=v_~x~0_41} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_~#t2467~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2469~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2467~0.offset, ~x~0] {2147#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:06,653 INFO L280 TraceCheckUtils]: 1: Hoare triple {2147#(= 0 ~__unbuffered_cnt~0)} [162] L767-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2147#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:06,654 INFO L280 TraceCheckUtils]: 2: Hoare triple {2147#(= 0 ~__unbuffered_cnt~0)} [194] L767-1-->L769: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9|) |v_ULTIMATE.start_main_~#t2468~0.offset_9| 1))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2468~0.base_9| 4) |v_#length_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2468~0.base_9|) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9| 1) |v_#valid_27|) (= 0 |v_ULTIMATE.start_main_~#t2468~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_10|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_9|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2147#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:06,654 INFO L280 TraceCheckUtils]: 3: Hoare triple {2147#(= 0 ~__unbuffered_cnt~0)} [164] L769-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2147#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:06,655 INFO L280 TraceCheckUtils]: 4: Hoare triple {2147#(= 0 ~__unbuffered_cnt~0)} [195] L769-1-->L771: Formula: (and (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2469~0.base_11| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2469~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11|) |v_ULTIMATE.start_main_~#t2469~0.offset_10| 2)) |v_#memory_int_11|) (= 0 |v_ULTIMATE.start_main_~#t2469~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2469~0.base, #length] {2147#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:06,656 INFO L280 TraceCheckUtils]: 5: Hoare triple {2147#(= 0 ~__unbuffered_cnt~0)} [182] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_9) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2147#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:06,656 INFO L280 TraceCheckUtils]: 6: Hoare triple {2147#(= 0 ~__unbuffered_cnt~0)} [166] L771-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2147#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:06,658 INFO L280 TraceCheckUtils]: 7: Hoare triple {2147#(= 0 ~__unbuffered_cnt~0)} [215] L771-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24| (mod v_~main$tmp_guard0~0_37 256)) (let ((.cse0 (= v_~__unbuffered_cnt~0_141 3))) (or (and (= 1 v_~main$tmp_guard0~0_37) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_37))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_37} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2148#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} is VALID [2020-07-28 21:43:06,658 INFO L280 TraceCheckUtils]: 8: Hoare triple {2148#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} [185] P2ENTRY-->L744: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~x~0_12 v_~__unbuffered_p2_EAX~0_12)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2148#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} is VALID [2020-07-28 21:43:06,660 INFO L280 TraceCheckUtils]: 9: Hoare triple {2148#(= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0)} [218] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_~main$tmp_guard1~0_34) (= 1 v_~__unbuffered_p2_EAX~0_36) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 0 v_~__unbuffered_p0_EAX~0_41) (= (mod v_~main$tmp_guard1~0_34 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|) (= v_~__unbuffered_p2_EBX~0_41 0) (= v_ULTIMATE.start_assume_abort_if_not_~cond_37 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_37))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_37, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2146#false} is VALID [2020-07-28 21:43:06,660 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:43:06,660 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1900283133] [2020-07-28 21:43:06,661 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:43:06,661 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:43:06,661 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1050416379] [2020-07-28 21:43:06,661 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:43:06,662 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:43:06,662 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:43:06,677 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:06,677 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:43:06,678 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:43:06,678 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:43:06,678 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:43:06,678 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 4 states. [2020-07-28 21:43:06,781 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,782 INFO L93 Difference]: Finished difference Result 148 states and 336 transitions. [2020-07-28 21:43:06,782 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:43:06,782 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 10 [2020-07-28 21:43:06,782 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:43:06,782 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:06,783 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-28 21:43:06,783 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:06,784 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 47 transitions. [2020-07-28 21:43:06,784 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 47 transitions. [2020-07-28 21:43:06,837 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:06,839 INFO L225 Difference]: With dead ends: 148 [2020-07-28 21:43:06,839 INFO L226 Difference]: Without dead ends: 112 [2020-07-28 21:43:06,840 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 3 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:43:06,842 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 112 states. [2020-07-28 21:43:06,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,845 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,846 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,847 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,848 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,849 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,850 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,851 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,852 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,853 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,854 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,855 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,856 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,857 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,858 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,859 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,860 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,861 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,862 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,863 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,864 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,865 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,866 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,867 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:06,869 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 112 to 112. [2020-07-28 21:43:06,869 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:43:06,869 INFO L82 GeneralOperation]: Start isEquivalent. First operand 112 states. Second operand 112 states. [2020-07-28 21:43:06,869 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 112 states. [2020-07-28 21:43:06,869 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 112 states. [2020-07-28 21:43:06,875 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,875 INFO L93 Difference]: Finished difference Result 112 states and 253 transitions. [2020-07-28 21:43:06,875 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-07-28 21:43:06,875 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:06,876 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:06,876 INFO L74 IsIncluded]: Start isIncluded. First operand 112 states. Second operand 112 states. [2020-07-28 21:43:06,876 INFO L87 Difference]: Start difference. First operand 112 states. Second operand 112 states. [2020-07-28 21:43:06,881 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:06,881 INFO L93 Difference]: Finished difference Result 112 states and 253 transitions. [2020-07-28 21:43:06,882 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-07-28 21:43:06,882 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:06,882 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:06,882 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:43:06,882 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:43:06,883 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 112 states. [2020-07-28 21:43:06,887 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 112 states to 112 states and 253 transitions. [2020-07-28 21:43:06,888 INFO L78 Accepts]: Start accepts. Automaton has 112 states and 253 transitions. Word has length 10 [2020-07-28 21:43:06,888 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:43:06,888 INFO L479 AbstractCegarLoop]: Abstraction has 112 states and 253 transitions. [2020-07-28 21:43:06,888 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:43:06,888 INFO L276 IsEmpty]: Start isEmpty. Operand 112 states and 253 transitions. [2020-07-28 21:43:06,888 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:43:06,889 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:43:06,889 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:43:06,889 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:43:06,889 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:43:06,889 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:43:06,889 INFO L82 PathProgramCache]: Analyzing trace with hash 806230555, now seen corresponding path program 1 times [2020-07-28 21:43:06,890 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:43:06,890 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1408901550] [2020-07-28 21:43:06,890 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:43:06,909 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:43:07,006 INFO L280 TraceCheckUtils]: 0: Hoare triple {2749#true} [222] ULTIMATE.startENTRY-->L767: Formula: (let ((.cse0 (store |v_#valid_61| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26| 1) |v_#valid_59|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26|) |v_ULTIMATE.start_main_~#t2467~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2467~0.offset_18|) (= 0 v_~__unbuffered_p0_EAX~0_54) (= 0 v_~y~0_25) (= v_~__unbuffered_p2_EBX~0_51 0) (= 0 v_~x~0_41) (= 0 |v_#NULL.offset_4|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2467~0.base_26| 4) |v_#length_21|) (= v_~__unbuffered_cnt~0_167 0) (= 0 v_~main$tmp_guard0~0_45) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2467~0.base_26|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_46) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_44))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_15|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, ULTIMATE.start_main_~#t2467~0.base=|v_ULTIMATE.start_main_~#t2467~0.base_26|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_19|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_44, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_45, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_15|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_18|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_54, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_59|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_46, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_167, ~y~0=v_~y~0_25, ULTIMATE.start_main_~#t2467~0.offset=|v_ULTIMATE.start_main_~#t2467~0.offset_18|, ~x~0=v_~x~0_41} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_~#t2467~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2469~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2467~0.offset, ~x~0] {2751#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,007 INFO L280 TraceCheckUtils]: 1: Hoare triple {2751#(= 0 ~__unbuffered_cnt~0)} [162] L767-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2751#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,008 INFO L280 TraceCheckUtils]: 2: Hoare triple {2751#(= 0 ~__unbuffered_cnt~0)} [194] L767-1-->L769: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9|) |v_ULTIMATE.start_main_~#t2468~0.offset_9| 1))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2468~0.base_9| 4) |v_#length_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2468~0.base_9|) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9| 1) |v_#valid_27|) (= 0 |v_ULTIMATE.start_main_~#t2468~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_10|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_9|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {2751#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,009 INFO L280 TraceCheckUtils]: 3: Hoare triple {2751#(= 0 ~__unbuffered_cnt~0)} [164] L769-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2751#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,010 INFO L280 TraceCheckUtils]: 4: Hoare triple {2751#(= 0 ~__unbuffered_cnt~0)} [195] L769-1-->L771: Formula: (and (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2469~0.base_11| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2469~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11|) |v_ULTIMATE.start_main_~#t2469~0.offset_10| 2)) |v_#memory_int_11|) (= 0 |v_ULTIMATE.start_main_~#t2469~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2469~0.base, #length] {2751#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,011 INFO L280 TraceCheckUtils]: 5: Hoare triple {2751#(= 0 ~__unbuffered_cnt~0)} [182] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_9) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2751#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,012 INFO L280 TraceCheckUtils]: 6: Hoare triple {2751#(= 0 ~__unbuffered_cnt~0)} [166] L771-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2751#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,013 INFO L280 TraceCheckUtils]: 7: Hoare triple {2751#(= 0 ~__unbuffered_cnt~0)} [201] L732-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {2752#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:43:07,015 INFO L280 TraceCheckUtils]: 8: Hoare triple {2752#(<= ~__unbuffered_cnt~0 1)} [215] L771-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24| (mod v_~main$tmp_guard0~0_37 256)) (let ((.cse0 (= v_~__unbuffered_cnt~0_141 3))) (or (and (= 1 v_~main$tmp_guard0~0_37) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_37))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_37} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2753#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:43:07,016 INFO L280 TraceCheckUtils]: 9: Hoare triple {2753#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [185] P2ENTRY-->L744: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~x~0_12 v_~__unbuffered_p2_EAX~0_12)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2753#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:43:07,018 INFO L280 TraceCheckUtils]: 10: Hoare triple {2753#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [218] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_~main$tmp_guard1~0_34) (= 1 v_~__unbuffered_p2_EAX~0_36) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 0 v_~__unbuffered_p0_EAX~0_41) (= (mod v_~main$tmp_guard1~0_34 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|) (= v_~__unbuffered_p2_EBX~0_41 0) (= v_ULTIMATE.start_assume_abort_if_not_~cond_37 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_37))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_37, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2750#false} is VALID [2020-07-28 21:43:07,019 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:43:07,019 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1408901550] [2020-07-28 21:43:07,019 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:43:07,019 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:43:07,020 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1528966884] [2020-07-28 21:43:07,020 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:43:07,021 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:43:07,021 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:43:07,037 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 11 edges. 11 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:07,037 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:43:07,037 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:43:07,038 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:43:07,038 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:43:07,038 INFO L87 Difference]: Start difference. First operand 112 states and 253 transitions. Second operand 5 states. [2020-07-28 21:43:07,184 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,184 INFO L93 Difference]: Finished difference Result 109 states and 227 transitions. [2020-07-28 21:43:07,185 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:43:07,185 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 11 [2020-07-28 21:43:07,185 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:43:07,185 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:43:07,186 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-28 21:43:07,187 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:43:07,188 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 55 transitions. [2020-07-28 21:43:07,188 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 55 transitions. [2020-07-28 21:43:07,277 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 55 edges. 55 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:07,279 INFO L225 Difference]: With dead ends: 109 [2020-07-28 21:43:07,279 INFO L226 Difference]: Without dead ends: 85 [2020-07-28 21:43:07,280 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:43:07,280 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 85 states. [2020-07-28 21:43:07,285 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,286 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,287 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,288 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,289 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,290 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,291 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,292 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,293 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,294 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,295 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,296 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,297 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,298 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,299 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,300 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,300 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,300 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,300 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,301 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,301 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,301 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,301 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,302 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,302 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,302 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,302 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,303 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,303 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,303 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,303 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,304 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,304 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,304 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,304 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,305 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,305 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,305 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,305 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,306 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,306 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,306 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,306 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,307 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,307 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,307 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,308 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,308 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,308 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 85 to 85. [2020-07-28 21:43:07,308 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:43:07,308 INFO L82 GeneralOperation]: Start isEquivalent. First operand 85 states. Second operand 85 states. [2020-07-28 21:43:07,309 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 21:43:07,309 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 21:43:07,313 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,313 INFO L93 Difference]: Finished difference Result 85 states and 173 transitions. [2020-07-28 21:43:07,313 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-07-28 21:43:07,313 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:07,314 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:07,314 INFO L74 IsIncluded]: Start isIncluded. First operand 85 states. Second operand 85 states. [2020-07-28 21:43:07,314 INFO L87 Difference]: Start difference. First operand 85 states. Second operand 85 states. [2020-07-28 21:43:07,318 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,318 INFO L93 Difference]: Finished difference Result 85 states and 173 transitions. [2020-07-28 21:43:07,318 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-07-28 21:43:07,318 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:07,318 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:07,319 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:43:07,319 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:43:07,319 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 85 states. [2020-07-28 21:43:07,322 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 85 states to 85 states and 173 transitions. [2020-07-28 21:43:07,322 INFO L78 Accepts]: Start accepts. Automaton has 85 states and 173 transitions. Word has length 11 [2020-07-28 21:43:07,323 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:43:07,323 INFO L479 AbstractCegarLoop]: Abstraction has 85 states and 173 transitions. [2020-07-28 21:43:07,323 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:43:07,323 INFO L276 IsEmpty]: Start isEmpty. Operand 85 states and 173 transitions. [2020-07-28 21:43:07,323 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:43:07,324 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:43:07,324 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:43:07,324 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:43:07,324 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:43:07,324 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:43:07,325 INFO L82 PathProgramCache]: Analyzing trace with hash 1664906609, now seen corresponding path program 1 times [2020-07-28 21:43:07,325 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:43:07,325 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [666333467] [2020-07-28 21:43:07,325 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:43:07,344 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:43:07,451 INFO L280 TraceCheckUtils]: 0: Hoare triple {3207#true} [222] ULTIMATE.startENTRY-->L767: Formula: (let ((.cse0 (store |v_#valid_61| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26| 1) |v_#valid_59|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26|) |v_ULTIMATE.start_main_~#t2467~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2467~0.offset_18|) (= 0 v_~__unbuffered_p0_EAX~0_54) (= 0 v_~y~0_25) (= v_~__unbuffered_p2_EBX~0_51 0) (= 0 v_~x~0_41) (= 0 |v_#NULL.offset_4|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2467~0.base_26| 4) |v_#length_21|) (= v_~__unbuffered_cnt~0_167 0) (= 0 v_~main$tmp_guard0~0_45) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2467~0.base_26|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_46) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_44))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_15|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, ULTIMATE.start_main_~#t2467~0.base=|v_ULTIMATE.start_main_~#t2467~0.base_26|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_19|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_44, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_45, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_15|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_18|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_54, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_59|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_46, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_167, ~y~0=v_~y~0_25, ULTIMATE.start_main_~#t2467~0.offset=|v_ULTIMATE.start_main_~#t2467~0.offset_18|, ~x~0=v_~x~0_41} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_~#t2467~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2469~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2467~0.offset, ~x~0] {3209#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,452 INFO L280 TraceCheckUtils]: 1: Hoare triple {3209#(= 0 ~__unbuffered_cnt~0)} [162] L767-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3209#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,453 INFO L280 TraceCheckUtils]: 2: Hoare triple {3209#(= 0 ~__unbuffered_cnt~0)} [194] L767-1-->L769: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9|) |v_ULTIMATE.start_main_~#t2468~0.offset_9| 1))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2468~0.base_9| 4) |v_#length_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2468~0.base_9|) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9| 1) |v_#valid_27|) (= 0 |v_ULTIMATE.start_main_~#t2468~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_10|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_9|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3209#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,454 INFO L280 TraceCheckUtils]: 3: Hoare triple {3209#(= 0 ~__unbuffered_cnt~0)} [164] L769-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3209#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,454 INFO L280 TraceCheckUtils]: 4: Hoare triple {3209#(= 0 ~__unbuffered_cnt~0)} [195] L769-1-->L771: Formula: (and (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2469~0.base_11| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2469~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11|) |v_ULTIMATE.start_main_~#t2469~0.offset_10| 2)) |v_#memory_int_11|) (= 0 |v_ULTIMATE.start_main_~#t2469~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2469~0.base, #length] {3209#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,455 INFO L280 TraceCheckUtils]: 5: Hoare triple {3209#(= 0 ~__unbuffered_cnt~0)} [182] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_9) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3209#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,456 INFO L280 TraceCheckUtils]: 6: Hoare triple {3209#(= 0 ~__unbuffered_cnt~0)} [166] L771-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3209#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:43:07,456 INFO L280 TraceCheckUtils]: 7: Hoare triple {3209#(= 0 ~__unbuffered_cnt~0)} [201] L732-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3210#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:43:07,457 INFO L280 TraceCheckUtils]: 8: Hoare triple {3210#(<= ~__unbuffered_cnt~0 1)} [185] P2ENTRY-->L744: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~x~0_12 v_~__unbuffered_p2_EAX~0_12)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3210#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:43:07,458 INFO L280 TraceCheckUtils]: 9: Hoare triple {3210#(<= ~__unbuffered_cnt~0 1)} [157] L744-->L747: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {3210#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:43:07,459 INFO L280 TraceCheckUtils]: 10: Hoare triple {3210#(<= ~__unbuffered_cnt~0 1)} [207] L747-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3211#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:43:07,460 INFO L280 TraceCheckUtils]: 11: Hoare triple {3211#(<= ~__unbuffered_cnt~0 2)} [215] L771-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24| (mod v_~main$tmp_guard0~0_37 256)) (let ((.cse0 (= v_~__unbuffered_cnt~0_141 3))) (or (and (= 1 v_~main$tmp_guard0~0_37) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_37))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_37} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3212#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} is VALID [2020-07-28 21:43:07,461 INFO L280 TraceCheckUtils]: 12: Hoare triple {3212#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (< 0 (+ |ULTIMATE.start_assume_abort_if_not_#in~cond| 1)))} [218] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_~main$tmp_guard1~0_34) (= 1 v_~__unbuffered_p2_EAX~0_36) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 0 v_~__unbuffered_p0_EAX~0_41) (= (mod v_~main$tmp_guard1~0_34 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|) (= v_~__unbuffered_p2_EBX~0_41 0) (= v_ULTIMATE.start_assume_abort_if_not_~cond_37 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_37))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_37, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3208#false} is VALID [2020-07-28 21:43:07,462 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:43:07,462 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [666333467] [2020-07-28 21:43:07,462 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:43:07,463 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:43:07,463 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1702626903] [2020-07-28 21:43:07,463 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-07-28 21:43:07,463 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:43:07,463 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:43:07,489 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 13 edges. 13 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:07,489 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:43:07,490 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:43:07,490 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:43:07,490 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:43:07,491 INFO L87 Difference]: Start difference. First operand 85 states and 173 transitions. Second operand 6 states. [2020-07-28 21:43:07,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,664 INFO L93 Difference]: Finished difference Result 80 states and 161 transitions. [2020-07-28 21:43:07,664 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:43:07,664 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 13 [2020-07-28 21:43:07,664 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:43:07,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:43:07,666 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:43:07,666 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:43:07,667 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 47 transitions. [2020-07-28 21:43:07,667 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 47 transitions. [2020-07-28 21:43:07,723 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 47 edges. 47 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:07,724 INFO L225 Difference]: With dead ends: 80 [2020-07-28 21:43:07,724 INFO L226 Difference]: Without dead ends: 72 [2020-07-28 21:43:07,725 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:43:07,726 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 72 states. [2020-07-28 21:43:07,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,751 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 72 to 72. [2020-07-28 21:43:07,752 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:43:07,752 INFO L82 GeneralOperation]: Start isEquivalent. First operand 72 states. Second operand 72 states. [2020-07-28 21:43:07,752 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 72 states. [2020-07-28 21:43:07,752 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 72 states. [2020-07-28 21:43:07,755 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,755 INFO L93 Difference]: Finished difference Result 72 states and 147 transitions. [2020-07-28 21:43:07,755 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-07-28 21:43:07,756 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:07,756 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:07,756 INFO L74 IsIncluded]: Start isIncluded. First operand 72 states. Second operand 72 states. [2020-07-28 21:43:07,756 INFO L87 Difference]: Start difference. First operand 72 states. Second operand 72 states. [2020-07-28 21:43:07,759 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,759 INFO L93 Difference]: Finished difference Result 72 states and 147 transitions. [2020-07-28 21:43:07,759 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-07-28 21:43:07,760 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:07,760 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:07,760 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:43:07,760 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:43:07,760 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 72 states. [2020-07-28 21:43:07,763 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 72 states to 72 states and 147 transitions. [2020-07-28 21:43:07,763 INFO L78 Accepts]: Start accepts. Automaton has 72 states and 147 transitions. Word has length 13 [2020-07-28 21:43:07,763 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:43:07,763 INFO L479 AbstractCegarLoop]: Abstraction has 72 states and 147 transitions. [2020-07-28 21:43:07,764 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:43:07,764 INFO L276 IsEmpty]: Start isEmpty. Operand 72 states and 147 transitions. [2020-07-28 21:43:07,764 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:43:07,764 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:43:07,764 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:43:07,764 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:43:07,765 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:43:07,765 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:43:07,765 INFO L82 PathProgramCache]: Analyzing trace with hash 399497030, now seen corresponding path program 1 times [2020-07-28 21:43:07,765 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:43:07,766 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1634957285] [2020-07-28 21:43:07,766 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:43:07,780 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:43:07,813 INFO L280 TraceCheckUtils]: 0: Hoare triple {3585#true} [222] ULTIMATE.startENTRY-->L767: Formula: (let ((.cse0 (store |v_#valid_61| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26| 1) |v_#valid_59|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26|) |v_ULTIMATE.start_main_~#t2467~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2467~0.offset_18|) (= 0 v_~__unbuffered_p0_EAX~0_54) (= 0 v_~y~0_25) (= v_~__unbuffered_p2_EBX~0_51 0) (= 0 v_~x~0_41) (= 0 |v_#NULL.offset_4|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2467~0.base_26| 4) |v_#length_21|) (= v_~__unbuffered_cnt~0_167 0) (= 0 v_~main$tmp_guard0~0_45) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2467~0.base_26|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_46) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_44))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_15|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, ULTIMATE.start_main_~#t2467~0.base=|v_ULTIMATE.start_main_~#t2467~0.base_26|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_19|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_44, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_45, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_15|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_18|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_54, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_59|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_46, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_167, ~y~0=v_~y~0_25, ULTIMATE.start_main_~#t2467~0.offset=|v_ULTIMATE.start_main_~#t2467~0.offset_18|, ~x~0=v_~x~0_41} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_~#t2467~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2469~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2467~0.offset, ~x~0] {3585#true} is VALID [2020-07-28 21:43:07,813 INFO L280 TraceCheckUtils]: 1: Hoare triple {3585#true} [162] L767-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3585#true} is VALID [2020-07-28 21:43:07,814 INFO L280 TraceCheckUtils]: 2: Hoare triple {3585#true} [194] L767-1-->L769: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9|) |v_ULTIMATE.start_main_~#t2468~0.offset_9| 1))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2468~0.base_9| 4) |v_#length_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2468~0.base_9|) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9| 1) |v_#valid_27|) (= 0 |v_ULTIMATE.start_main_~#t2468~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_10|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_9|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3585#true} is VALID [2020-07-28 21:43:07,814 INFO L280 TraceCheckUtils]: 3: Hoare triple {3585#true} [164] L769-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3585#true} is VALID [2020-07-28 21:43:07,814 INFO L280 TraceCheckUtils]: 4: Hoare triple {3585#true} [195] L769-1-->L771: Formula: (and (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2469~0.base_11| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2469~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11|) |v_ULTIMATE.start_main_~#t2469~0.offset_10| 2)) |v_#memory_int_11|) (= 0 |v_ULTIMATE.start_main_~#t2469~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2469~0.base, #length] {3585#true} is VALID [2020-07-28 21:43:07,815 INFO L280 TraceCheckUtils]: 5: Hoare triple {3585#true} [182] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_9) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3587#(= 1 ~x~0)} is VALID [2020-07-28 21:43:07,816 INFO L280 TraceCheckUtils]: 6: Hoare triple {3587#(= 1 ~x~0)} [166] L771-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3587#(= 1 ~x~0)} is VALID [2020-07-28 21:43:07,816 INFO L280 TraceCheckUtils]: 7: Hoare triple {3587#(= 1 ~x~0)} [201] L732-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3587#(= 1 ~x~0)} is VALID [2020-07-28 21:43:07,817 INFO L280 TraceCheckUtils]: 8: Hoare triple {3587#(= 1 ~x~0)} [185] P2ENTRY-->L744: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~x~0_12 v_~__unbuffered_p2_EAX~0_12)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3587#(= 1 ~x~0)} is VALID [2020-07-28 21:43:07,818 INFO L280 TraceCheckUtils]: 9: Hoare triple {3587#(= 1 ~x~0)} [157] L744-->L747: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {3587#(= 1 ~x~0)} is VALID [2020-07-28 21:43:07,818 INFO L280 TraceCheckUtils]: 10: Hoare triple {3587#(= 1 ~x~0)} [190] P0ENTRY-->L715: Formula: (and (= 1 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_12, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3587#(= 1 ~x~0)} is VALID [2020-07-28 21:43:07,819 INFO L280 TraceCheckUtils]: 11: Hoare triple {3587#(= 1 ~x~0)} [146] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {3588#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:43:07,820 INFO L280 TraceCheckUtils]: 12: Hoare triple {3588#(= 1 ~__unbuffered_p0_EAX~0)} [193] L720-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_7|) (= 0 |v_P0Thread1of1ForFork0_#res.base_7|) (= v_~__unbuffered_cnt~0_80 (+ v_~__unbuffered_cnt~0_81 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_81} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_7|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {3588#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:43:07,820 INFO L280 TraceCheckUtils]: 13: Hoare triple {3588#(= 1 ~__unbuffered_p0_EAX~0)} [207] L747-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3588#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:43:07,821 INFO L280 TraceCheckUtils]: 14: Hoare triple {3588#(= 1 ~__unbuffered_p0_EAX~0)} [215] L771-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24| (mod v_~main$tmp_guard0~0_37 256)) (let ((.cse0 (= v_~__unbuffered_cnt~0_141 3))) (or (and (= 1 v_~main$tmp_guard0~0_37) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_37))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_37} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3588#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:43:07,822 INFO L280 TraceCheckUtils]: 15: Hoare triple {3588#(= 1 ~__unbuffered_p0_EAX~0)} [218] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_~main$tmp_guard1~0_34) (= 1 v_~__unbuffered_p2_EAX~0_36) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 0 v_~__unbuffered_p0_EAX~0_41) (= (mod v_~main$tmp_guard1~0_34 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|) (= v_~__unbuffered_p2_EBX~0_41 0) (= v_ULTIMATE.start_assume_abort_if_not_~cond_37 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_37))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_37, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3586#false} is VALID [2020-07-28 21:43:07,822 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:43:07,823 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1634957285] [2020-07-28 21:43:07,823 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:43:07,823 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:43:07,823 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1753415832] [2020-07-28 21:43:07,824 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:43:07,824 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:43:07,824 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:43:07,842 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:07,842 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:43:07,842 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:43:07,842 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:43:07,843 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:43:07,843 INFO L87 Difference]: Start difference. First operand 72 states and 147 transitions. Second operand 4 states. [2020-07-28 21:43:07,918 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,918 INFO L93 Difference]: Finished difference Result 97 states and 192 transitions. [2020-07-28 21:43:07,918 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:43:07,919 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:43:07,919 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:43:07,919 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:43:07,920 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:07,920 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 30 transitions. [2020-07-28 21:43:07,920 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 30 transitions. [2020-07-28 21:43:07,955 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 30 edges. 30 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:07,956 INFO L225 Difference]: With dead ends: 97 [2020-07-28 21:43:07,956 INFO L226 Difference]: Without dead ends: 48 [2020-07-28 21:43:07,956 INFO L675 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 [2020-07-28 21:43:07,957 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 48 states. [2020-07-28 21:43:07,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,958 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,959 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,960 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,961 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,962 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,963 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,964 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,965 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,966 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,967 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:43:07,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 48 to 48. [2020-07-28 21:43:07,968 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:43:07,968 INFO L82 GeneralOperation]: Start isEquivalent. First operand 48 states. Second operand 48 states. [2020-07-28 21:43:07,968 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:43:07,968 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:43:07,970 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,970 INFO L93 Difference]: Finished difference Result 48 states and 85 transitions. [2020-07-28 21:43:07,970 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-07-28 21:43:07,971 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:07,971 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:07,971 INFO L74 IsIncluded]: Start isIncluded. First operand 48 states. Second operand 48 states. [2020-07-28 21:43:07,971 INFO L87 Difference]: Start difference. First operand 48 states. Second operand 48 states. [2020-07-28 21:43:07,973 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:07,973 INFO L93 Difference]: Finished difference Result 48 states and 85 transitions. [2020-07-28 21:43:07,973 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-07-28 21:43:07,973 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:07,973 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:07,973 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:43:07,974 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:43:07,974 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 48 states. [2020-07-28 21:43:07,975 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 48 states to 48 states and 85 transitions. [2020-07-28 21:43:07,976 INFO L78 Accepts]: Start accepts. Automaton has 48 states and 85 transitions. Word has length 16 [2020-07-28 21:43:07,976 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:43:07,976 INFO L479 AbstractCegarLoop]: Abstraction has 48 states and 85 transitions. [2020-07-28 21:43:07,976 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:43:07,976 INFO L276 IsEmpty]: Start isEmpty. Operand 48 states and 85 transitions. [2020-07-28 21:43:07,976 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:43:07,977 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:43:07,977 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:43:07,977 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:43:07,977 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:43:07,977 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:43:07,977 INFO L82 PathProgramCache]: Analyzing trace with hash 1410540376, now seen corresponding path program 2 times [2020-07-28 21:43:07,978 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:43:07,978 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1040731375] [2020-07-28 21:43:07,978 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:43:07,990 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:43:08,023 INFO L280 TraceCheckUtils]: 0: Hoare triple {3883#true} [222] ULTIMATE.startENTRY-->L767: Formula: (let ((.cse0 (store |v_#valid_61| 0 0))) (and (= (store .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26| 1) |v_#valid_59|) (= (store |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26| (store (select |v_#memory_int_16| |v_ULTIMATE.start_main_~#t2467~0.base_26|) |v_ULTIMATE.start_main_~#t2467~0.offset_18| 0)) |v_#memory_int_15|) (= 0 |v_ULTIMATE.start_main_~#t2467~0.offset_18|) (= 0 v_~__unbuffered_p0_EAX~0_54) (= 0 v_~y~0_25) (= v_~__unbuffered_p2_EBX~0_51 0) (= 0 v_~x~0_41) (= 0 |v_#NULL.offset_4|) (= (store |v_#length_22| |v_ULTIMATE.start_main_~#t2467~0.base_26| 4) |v_#length_21|) (= v_~__unbuffered_cnt~0_167 0) (= 0 v_~main$tmp_guard0~0_45) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t2467~0.base_26|) (= (select .cse0 |v_ULTIMATE.start_main_~#t2467~0.base_26|) 0) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~__unbuffered_p2_EAX~0_46) (= 0 |v_#NULL.base_4|) (= 0 v_~main$tmp_guard1~0_44))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_61|, #memory_int=|v_#memory_int_16|, #length=|v_#length_22|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_15|, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_51, ULTIMATE.start_main_~#t2467~0.base=|v_ULTIMATE.start_main_~#t2467~0.base_26|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_19|, #NULL.offset=|v_#NULL.offset_4|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_44, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_45, #NULL.base=|v_#NULL.base_4|, ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_15|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_18|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_54, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_21|, #valid=|v_#valid_59|, #memory_int=|v_#memory_int_15|, #length=|v_#length_21|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_46, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_167, ~y~0=v_~y~0_25, ULTIMATE.start_main_~#t2467~0.offset=|v_ULTIMATE.start_main_~#t2467~0.offset_18|, ~x~0=v_~x~0_41} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, ~__unbuffered_p2_EBX~0, ULTIMATE.start_main_~#t2467~0.base, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2469~0.base, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ULTIMATE.start_main_~#t2467~0.offset, ~x~0] {3883#true} is VALID [2020-07-28 21:43:08,024 INFO L280 TraceCheckUtils]: 1: Hoare triple {3883#true} [162] L767-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3883#true} is VALID [2020-07-28 21:43:08,024 INFO L280 TraceCheckUtils]: 2: Hoare triple {3883#true} [194] L767-1-->L769: Formula: (and (= |v_#memory_int_9| (store |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9| (store (select |v_#memory_int_10| |v_ULTIMATE.start_main_~#t2468~0.base_9|) |v_ULTIMATE.start_main_~#t2468~0.offset_9| 1))) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (= (store |v_#length_14| |v_ULTIMATE.start_main_~#t2468~0.base_9| 4) |v_#length_13|) (not (= 0 |v_ULTIMATE.start_main_~#t2468~0.base_9|)) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t2468~0.base_9|) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t2468~0.base_9| 1) |v_#valid_27|) (= 0 |v_ULTIMATE.start_main_~#t2468~0.offset_9|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_10|, #length=|v_#length_14|} OutVars{ULTIMATE.start_main_~#t2468~0.offset=|v_ULTIMATE.start_main_~#t2468~0.offset_9|, ULTIMATE.start_main_~#t2468~0.base=|v_ULTIMATE.start_main_~#t2468~0.base_9|, #StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_27|, #memory_int=|v_#memory_int_9|, #length=|v_#length_13|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2468~0.offset, ULTIMATE.start_main_~#t2468~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length] {3883#true} is VALID [2020-07-28 21:43:08,024 INFO L280 TraceCheckUtils]: 3: Hoare triple {3883#true} [164] L769-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {3883#true} is VALID [2020-07-28 21:43:08,025 INFO L280 TraceCheckUtils]: 4: Hoare triple {3883#true} [195] L769-1-->L771: Formula: (and (= |v_#valid_29| (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11| 1)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2469~0.base_11| 4)) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2469~0.base_11|) (not (= 0 |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2469~0.base_11|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2469~0.base_11|) |v_ULTIMATE.start_main_~#t2469~0.offset_10| 2)) |v_#memory_int_11|) (= 0 |v_ULTIMATE.start_main_~#t2469~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{ULTIMATE.start_main_~#t2469~0.offset=|v_ULTIMATE.start_main_~#t2469~0.offset_10|, #StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2469~0.base=|v_ULTIMATE.start_main_~#t2469~0.base_11|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2469~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2469~0.base, #length] {3883#true} is VALID [2020-07-28 21:43:08,025 INFO L280 TraceCheckUtils]: 5: Hoare triple {3883#true} [166] L771-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {3883#true} is VALID [2020-07-28 21:43:08,026 INFO L280 TraceCheckUtils]: 6: Hoare triple {3883#true} [190] P0ENTRY-->L715: Formula: (and (= 1 v_~y~0_12) (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|)) InVars {P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_4|, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_4|, ~y~0=v_~y~0_12, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~y~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3885#(= 1 ~y~0)} is VALID [2020-07-28 21:43:08,026 INFO L280 TraceCheckUtils]: 7: Hoare triple {3885#(= 1 ~y~0)} [146] L715-->L720: Formula: (= v_~__unbuffered_p0_EAX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0] {3885#(= 1 ~y~0)} is VALID [2020-07-28 21:43:08,027 INFO L280 TraceCheckUtils]: 8: Hoare triple {3885#(= 1 ~y~0)} [193] L720-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.offset_7|) (= 0 |v_P0Thread1of1ForFork0_#res.base_7|) (= v_~__unbuffered_cnt~0_80 (+ v_~__unbuffered_cnt~0_81 1))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_81} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_7|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_80} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {3885#(= 1 ~y~0)} is VALID [2020-07-28 21:43:08,028 INFO L280 TraceCheckUtils]: 9: Hoare triple {3885#(= 1 ~y~0)} [182] P1ENTRY-->L732: Formula: (and (= 1 v_~x~0_9) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_9} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3885#(= 1 ~y~0)} is VALID [2020-07-28 21:43:08,028 INFO L280 TraceCheckUtils]: 10: Hoare triple {3885#(= 1 ~y~0)} [201] L732-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_7|) (= v_~__unbuffered_cnt~0_87 (+ v_~__unbuffered_cnt~0_88 1)) (= 0 |v_P1Thread1of1ForFork1_#res.offset_7|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_88} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_7|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_87, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_7|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3885#(= 1 ~y~0)} is VALID [2020-07-28 21:43:08,029 INFO L280 TraceCheckUtils]: 11: Hoare triple {3885#(= 1 ~y~0)} [185] P2ENTRY-->L744: Formula: (and (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4) (= v_~x~0_12 v_~__unbuffered_p2_EAX~0_12)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_4, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_4, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_12, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3885#(= 1 ~y~0)} is VALID [2020-07-28 21:43:08,030 INFO L280 TraceCheckUtils]: 12: Hoare triple {3885#(= 1 ~y~0)} [157] L744-->L747: Formula: (= v_~__unbuffered_p2_EBX~0_1 v_~y~0_2) InVars {~y~0=v_~y~0_2} OutVars{~y~0=v_~y~0_2, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p2_EBX~0] {3886#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:43:08,030 INFO L280 TraceCheckUtils]: 13: Hoare triple {3886#(= 1 ~__unbuffered_p2_EBX~0)} [207] L747-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_9| 0) (= v_~__unbuffered_cnt~0_102 (+ v_~__unbuffered_cnt~0_103 1)) (= 0 |v_P2Thread1of1ForFork2_#res.base_9|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_103} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_9|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_102, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_9|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3886#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:43:08,031 INFO L280 TraceCheckUtils]: 14: Hoare triple {3886#(= 1 ~__unbuffered_p2_EBX~0)} [215] L771-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24| (mod v_~main$tmp_guard0~0_37 256)) (let ((.cse0 (= v_~__unbuffered_cnt~0_141 3))) (or (and (= 1 v_~main$tmp_guard0~0_37) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_37))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_141, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_37} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3886#(= 1 ~__unbuffered_p2_EBX~0)} is VALID [2020-07-28 21:43:08,032 INFO L280 TraceCheckUtils]: 15: Hoare triple {3886#(= 1 ~__unbuffered_p2_EBX~0)} [218] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 0 v_~main$tmp_guard1~0_34) (= 1 v_~__unbuffered_p2_EAX~0_36) (= 0 v_ULTIMATE.start___VERIFIER_assert_~expression_19) (= 0 v_~__unbuffered_p0_EAX~0_41) (= (mod v_~main$tmp_guard1~0_34 256) |v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|) (= v_~__unbuffered_p2_EBX~0_41 0) (= v_ULTIMATE.start_assume_abort_if_not_~cond_37 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_37))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_35|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_41, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_19, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_37, ~__unbuffered_p2_EBX~0=v_~__unbuffered_p2_EBX~0_41, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_34, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_36, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_16|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3884#false} is VALID [2020-07-28 21:43:08,032 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2020-07-28 21:43:08,033 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1040731375] [2020-07-28 21:43:08,033 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:43:08,033 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:43:08,033 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [536082861] [2020-07-28 21:43:08,034 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:43:08,034 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:43:08,034 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:43:08,053 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:08,053 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:43:08,054 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:43:08,054 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:43:08,054 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:43:08,054 INFO L87 Difference]: Start difference. First operand 48 states and 85 transitions. Second operand 4 states. [2020-07-28 21:43:08,109 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:08,109 INFO L93 Difference]: Finished difference Result 47 states and 84 transitions. [2020-07-28 21:43:08,109 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:43:08,109 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:43:08,110 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:43:08,110 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:43:08,111 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:43:08,111 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 22 transitions. [2020-07-28 21:43:08,111 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 22 transitions. [2020-07-28 21:43:08,136 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 22 edges. 22 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:43:08,137 INFO L225 Difference]: With dead ends: 47 [2020-07-28 21:43:08,137 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:43:08,137 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:43:08,137 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:43:08,137 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:43:08,138 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:43:08,138 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:43:08,138 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:43:08,138 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:43:08,138 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:08,139 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:43:08,139 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:43:08,139 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:08,139 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:08,139 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:43:08,139 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:43:08,140 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:43:08,140 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:43:08,140 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:43:08,140 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:08,140 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:43:08,140 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:43:08,140 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:43:08,140 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:43:08,141 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:43:08,141 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-28 21:43:08,141 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:43:08,141 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:43:08,141 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:43:08,142 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:43:08,142 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:43:08,142 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:43:08,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:43:08 BasicIcfg [2020-07-28 21:43:08,146 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:43:08,147 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:43:08,147 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:43:08,147 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:43:08,148 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:43:02" (3/4) ... [2020-07-28 21:43:08,151 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:43:08,157 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:43:08,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:43:08,158 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:43:08,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:43:08,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:43:08,163 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:43:08,210 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:43:08,210 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:43:08,213 INFO L168 Benchmark]: Toolchain (without parser) took 7094.28 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 312.0 MB). Free memory was 956.2 MB in the beginning and 1.2 GB in the end (delta: -214.1 MB). Peak memory consumption was 97.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:43:08,214 INFO L168 Benchmark]: CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:43:08,214 INFO L168 Benchmark]: CACSL2BoogieTranslator took 801.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:43:08,215 INFO L168 Benchmark]: Boogie Procedure Inliner took 52.89 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. [2020-07-28 21:43:08,216 INFO L168 Benchmark]: Boogie Preprocessor took 32.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. [2020-07-28 21:43:08,216 INFO L168 Benchmark]: RCFGBuilder took 577.71 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. [2020-07-28 21:43:08,217 INFO L168 Benchmark]: TraceAbstraction took 5552.24 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -115.8 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. [2020-07-28 21:43:08,218 INFO L168 Benchmark]: Witness Printer took 63.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. [2020-07-28 21:43:08,221 INFO L336 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - AssertionsEnabledResult: Assertions are enabled Assertions are enabled - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.35 ms. Allocated memory is still 1.0 GB. Free memory is still 987.1 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 801.71 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 145.2 MB). Free memory was 956.2 MB in the beginning and 1.1 GB in the end (delta: -145.7 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 52.89 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 32.25 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: 6.6 MB). Peak memory consumption was 6.6 MB. Max. memory is 11.5 GB. * RCFGBuilder took 577.71 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: 31.7 MB). Peak memory consumption was 31.7 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5552.24 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 166.7 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -115.8 MB). Peak memory consumption was 51.0 MB. Max. memory is 11.5 GB. * Witness Printer took 63.44 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.1 MB). Peak memory consumption was 9.1 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 35 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 5 ConcurrentYvCompositions, 2 ChoiceCompositions, 644 VarBasedMoverChecksPositive, 33 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 38 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.8s, 0 MoverChecksTotal, 2037 CheckedPairsTotal, 54 TotalNumberOfCompositions - PositiveResult [Line: 7]: 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 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.4s, OverallIterations: 7, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 124 SDtfs, 134 SDslu, 168 SDs, 0 SdLazy, 98 SolverSat, 20 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 25 GetRequests, 3 SyntacticMatches, 0 SemanticMatches, 22 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.2s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred 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: 0.3s AutomataMinimizationTime, 7 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 83 NumberOfCodeBlocks, 83 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 76 ConstructedInterpolants, 0 QuantifiedInterpolants, 2526 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 7 InterpolantComputations, 7 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...