./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe000_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/safe000_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 536d6936304b3f945ccfe4179c7bbb72691db26e ..................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................... 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 21:26:19,882 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:26:19,885 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:26:19,902 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:26:19,903 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:26:19,905 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:26:19,907 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:26:19,917 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:26:19,921 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:26:19,925 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:26:19,927 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:26:19,928 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:26:19,929 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:26:19,931 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:26:19,932 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:26:19,933 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:26:19,934 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:26:19,935 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:26:19,938 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:26:19,942 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:26:19,947 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:26:19,950 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:26:19,952 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:26:19,953 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:26:19,955 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:26:19,956 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:26:19,956 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:26:19,958 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:26:19,958 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:26:19,959 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:26:19,959 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:26:19,961 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:26:19,961 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:26:19,962 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:26:19,964 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:26:19,964 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:26:19,965 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:26:19,965 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:26:19,965 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:26:19,966 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:26:19,968 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:26:19,968 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:26:19,995 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:26:19,995 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:26:19,997 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:26:19,997 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:26:19,997 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:26:19,998 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:26:19,998 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:26:19,998 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:26:19,999 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:26:19,999 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:26:19,999 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:26:19,999 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:26:20,000 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:26:20,000 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:26:20,000 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:26:20,001 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:26:20,001 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:26:20,001 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:26:20,002 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:26:20,002 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:26:20,002 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:26:20,002 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:26:20,003 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:26:20,003 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:26:20,003 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:26:20,004 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:26:20,004 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:26:20,004 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:26:20,005 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:26:20,005 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 -> 536d6936304b3f945ccfe4179c7bbb72691db26e [2020-07-28 21:26:20,297 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:26:20,310 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:26:20,314 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:26:20,315 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:26:20,316 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:26:20,316 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe000_tso.oepc.i [2020-07-28 21:26:20,383 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c22dd91/0eea23d84e3d45bf908189862e5dc46b/FLAG15c065a59 [2020-07-28 21:26:20,895 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:26:20,896 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe000_tso.oepc.i [2020-07-28 21:26:20,916 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c22dd91/0eea23d84e3d45bf908189862e5dc46b/FLAG15c065a59 [2020-07-28 21:26:21,206 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/36c22dd91/0eea23d84e3d45bf908189862e5dc46b [2020-07-28 21:26:21,210 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:26:21,214 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:26:21,215 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:26:21,215 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:26:21,219 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:26:21,221 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:21,226 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@6fd25971 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21, skipping insertion in model container [2020-07-28 21:26:21,226 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:21,235 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:26:21,302 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:26:21,761 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:26:21,774 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:26:21,848 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:26:21,955 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:26:21,956 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21 WrapperNode [2020-07-28 21:26:21,957 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:26:21,958 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:26:21,959 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:26:21,959 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:26:21,968 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,008 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,043 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:26:22,044 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:26:22,044 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:26:22,044 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:26:22,053 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,054 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,057 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,057 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,066 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,068 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,070 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (1/1) ... [2020-07-28 21:26:22,074 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:26:22,074 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:26:22,075 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:26:22,075 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:26:22,076 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (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 21:26:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:26:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:26:22,139 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:26:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:26:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:26:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:26:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:26:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:26:22,140 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:26:22,140 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:26:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:26:22,141 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:26:22,141 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:26:22,142 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 21:26:22,569 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:26:22,569 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:26:22,573 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:26:22 BoogieIcfgContainer [2020-07-28 21:26:22,574 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:26:22,575 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:26:22,575 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:26:22,581 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:26:22,582 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:26:21" (1/3) ... [2020-07-28 21:26:22,583 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1ba9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:26:22, skipping insertion in model container [2020-07-28 21:26:22,583 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:26:21" (2/3) ... [2020-07-28 21:26:22,586 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@7e1ba9dd and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:26:22, skipping insertion in model container [2020-07-28 21:26:22,586 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:26:22" (3/3) ... [2020-07-28 21:26:22,588 INFO L109 eAbstractionObserver]: Analyzing ICFG safe000_tso.oepc.i [2020-07-28 21:26:22,601 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:26:22,601 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:26:22,608 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:26:22,609 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:26:22,658 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,661 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,662 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,662 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,663 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,664 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,665 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,666 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,666 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,667 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,667 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,668 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,669 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,671 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,671 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,671 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,672 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,672 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,677 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,678 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,678 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,679 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,685 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,685 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,686 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,686 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,688 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,688 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,689 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:26:22,705 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:26:22,732 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:26:22,732 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:26:22,732 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:26:22,733 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:26:22,733 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:26:22,733 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:26:22,733 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:26:22,733 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:26:22,749 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 78 places, 70 transitions, 155 flow [2020-07-28 21:26:22,751 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:26:22,799 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:26:22,800 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:26:22,805 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:26:22,808 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 78 places, 70 transitions, 155 flow [2020-07-28 21:26:22,857 INFO L129 PetriNetUnfolder]: 2/67 cut-off events. [2020-07-28 21:26:22,858 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:26:22,858 INFO L80 FinitePrefix]: Finished finitePrefix Result has 77 conditions, 67 events. 2/67 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 46 event pairs, 0 based on Foata normal form. 0/64 useless extension candidates. Maximal degree in co-relation 55. Up to 2 conditions per place. [2020-07-28 21:26:22,865 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1260 [2020-07-28 21:26:22,868 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:26:25,044 WARN L193 SmtUtils]: Spent 122.00 ms on a formula simplification. DAG size of input: 51 DAG size of output: 49 [2020-07-28 21:26:25,345 INFO L206 etLargeBlockEncoding]: Checked pairs total: 2700 [2020-07-28 21:26:25,345 INFO L214 etLargeBlockEncoding]: Total number of compositions: 59 [2020-07-28 21:26:25,350 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 31 places, 22 transitions, 59 flow [2020-07-28 21:26:25,399 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 298 states. [2020-07-28 21:26:25,402 INFO L276 IsEmpty]: Start isEmpty. Operand 298 states. [2020-07-28 21:26:25,431 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:26:25,432 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:25,433 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:25,433 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:25,448 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:25,448 INFO L82 PathProgramCache]: Analyzing trace with hash -1011733384, now seen corresponding path program 1 times [2020-07-28 21:26:25,462 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:25,463 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1253034318] [2020-07-28 21:26:25,463 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:25,627 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:25,740 INFO L280 TraceCheckUtils]: 0: Hoare triple {677#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1795~0.base_24|) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24| 1)) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24|)) (= 0 v_~__unbuffered_p1_EAX~0_48) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24|) |v_ULTIMATE.start_main_~#t1795~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= 0 v_~__unbuffered_p0_EAX~0_44) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1795~0.base_24| 4)) (= 0 |v_#NULL.offset_6|) (= 0 |v_ULTIMATE.start_main_~#t1795~0.offset_17|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1795~0.offset=|v_ULTIMATE.start_main_~#t1795~0.offset_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_14|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1795~0.base=|v_ULTIMATE.start_main_~#t1795~0.base_24|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_22|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_19|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1795~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t1797~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1795~0.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1796~0.base, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1797~0.base, ~y~0, ~x~0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:26:25,741 INFO L280 TraceCheckUtils]: 1: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [165] L768-->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] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:26:25,742 INFO L280 TraceCheckUtils]: 2: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [202] L768-1-->L770: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t1796~0.offset_8|) (= (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9|) 0) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1796~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t1796~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1796~0.base_9| 4)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9|) |v_ULTIMATE.start_main_~#t1796~0.offset_8| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t1796~0.base, #length] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:26:25,743 INFO L280 TraceCheckUtils]: 3: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [167] L770-->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] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:26:25,745 INFO L280 TraceCheckUtils]: 4: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [196] L770-1-->L772: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1797~0.base_8| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8| 1) |v_#valid_27|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1797~0.base_8|) (= 0 |v_ULTIMATE.start_main_~#t1797~0.offset_8|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8|) |v_ULTIMATE.start_main_~#t1797~0.offset_8| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1797~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1797~0.base] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:26:25,746 INFO L280 TraceCheckUtils]: 5: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [169] L772-->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] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:26:25,747 INFO L280 TraceCheckUtils]: 6: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {679#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:26:25,748 INFO L280 TraceCheckUtils]: 7: Hoare triple {679#(<= ~__unbuffered_p2_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= 2 v_~__unbuffered_p0_EAX~0_43) (= 1 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {678#false} is VALID [2020-07-28 21:26:25,750 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 21:26:25,751 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1253034318] [2020-07-28 21:26:25,752 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:25,753 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:26:25,755 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1856420245] [2020-07-28 21:26:25,761 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:26:25,764 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:25,768 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:26:25,796 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 21:26:25,796 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:26:25,796 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:25,807 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:26:25,808 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:26:25,811 INFO L87 Difference]: Start difference. First operand 298 states. Second operand 3 states. [2020-07-28 21:26:25,952 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:25,953 INFO L93 Difference]: Finished difference Result 282 states and 808 transitions. [2020-07-28 21:26:25,953 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:26:25,953 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:26:25,953 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:25,955 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:25,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:25,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:25,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:25,958 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:26:26,003 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:26,037 INFO L225 Difference]: With dead ends: 282 [2020-07-28 21:26:26,037 INFO L226 Difference]: Without dead ends: 218 [2020-07-28 21:26:26,038 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 21:26:26,062 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 218 states. [2020-07-28 21:26:26,085 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,087 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,088 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,089 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,090 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,091 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,092 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,093 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,094 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,095 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,096 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,097 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,098 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,099 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,100 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,101 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,102 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,103 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,104 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,105 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,106 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,107 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,108 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,109 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,110 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,111 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,112 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,113 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,114 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,115 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,116 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,117 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,118 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,119 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,120 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,121 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,122 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,123 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,124 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,125 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,126 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,127 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,128 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,129 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,130 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,131 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,132 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,133 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,134 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,135 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,136 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,137 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,138 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,139 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,140 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,141 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,142 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 218 to 218. [2020-07-28 21:26:26,142 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:26,143 INFO L82 GeneralOperation]: Start isEquivalent. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:26,143 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:26,143 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:26,163 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,164 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:26:26,164 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:26:26,167 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:26,167 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:26,167 INFO L74 IsIncluded]: Start isIncluded. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:26,167 INFO L87 Difference]: Start difference. First operand 218 states. Second operand 218 states. [2020-07-28 21:26:26,186 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,186 INFO L93 Difference]: Finished difference Result 218 states and 600 transitions. [2020-07-28 21:26:26,187 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:26:26,189 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:26,189 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:26,189 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:26,189 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:26,189 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 218 states. [2020-07-28 21:26:26,206 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 218 states to 218 states and 600 transitions. [2020-07-28 21:26:26,208 INFO L78 Accepts]: Start accepts. Automaton has 218 states and 600 transitions. Word has length 8 [2020-07-28 21:26:26,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:26,208 INFO L479 AbstractCegarLoop]: Abstraction has 218 states and 600 transitions. [2020-07-28 21:26:26,209 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:26:26,209 INFO L276 IsEmpty]: Start isEmpty. Operand 218 states and 600 transitions. [2020-07-28 21:26:26,209 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:26:26,210 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:26,210 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:26,210 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:26:26,210 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:26,211 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:26,211 INFO L82 PathProgramCache]: Analyzing trace with hash -1298976658, now seen corresponding path program 1 times [2020-07-28 21:26:26,211 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:26,211 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1712262037] [2020-07-28 21:26:26,211 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:26,240 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:26,291 INFO L280 TraceCheckUtils]: 0: Hoare triple {1836#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1795~0.base_24|) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24| 1)) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24|)) (= 0 v_~__unbuffered_p1_EAX~0_48) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24|) |v_ULTIMATE.start_main_~#t1795~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= 0 v_~__unbuffered_p0_EAX~0_44) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1795~0.base_24| 4)) (= 0 |v_#NULL.offset_6|) (= 0 |v_ULTIMATE.start_main_~#t1795~0.offset_17|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1795~0.offset=|v_ULTIMATE.start_main_~#t1795~0.offset_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_14|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1795~0.base=|v_ULTIMATE.start_main_~#t1795~0.base_24|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_22|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_19|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1795~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t1797~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1795~0.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1796~0.base, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1797~0.base, ~y~0, ~x~0] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,292 INFO L280 TraceCheckUtils]: 1: Hoare triple {1838#(= 0 ~y~0)} [165] L768-->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] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,292 INFO L280 TraceCheckUtils]: 2: Hoare triple {1838#(= 0 ~y~0)} [202] L768-1-->L770: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t1796~0.offset_8|) (= (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9|) 0) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1796~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t1796~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1796~0.base_9| 4)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9|) |v_ULTIMATE.start_main_~#t1796~0.offset_8| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t1796~0.base, #length] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,293 INFO L280 TraceCheckUtils]: 3: Hoare triple {1838#(= 0 ~y~0)} [167] L770-->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] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,294 INFO L280 TraceCheckUtils]: 4: Hoare triple {1838#(= 0 ~y~0)} [196] L770-1-->L772: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1797~0.base_8| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8| 1) |v_#valid_27|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1797~0.base_8|) (= 0 |v_ULTIMATE.start_main_~#t1797~0.offset_8|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8|) |v_ULTIMATE.start_main_~#t1797~0.offset_8| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1797~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1797~0.base] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,294 INFO L280 TraceCheckUtils]: 5: Hoare triple {1838#(= 0 ~y~0)} [169] L772-->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] {1838#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,295 INFO L280 TraceCheckUtils]: 6: Hoare triple {1838#(= 0 ~y~0)} [194] P2ENTRY-->L745: 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_~y~0_28 v_~__unbuffered_p2_EAX~0_20)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {1839#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:26:26,296 INFO L280 TraceCheckUtils]: 7: Hoare triple {1839#(= 0 ~__unbuffered_p2_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1839#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:26:26,297 INFO L280 TraceCheckUtils]: 8: Hoare triple {1839#(= 0 ~__unbuffered_p2_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= 2 v_~__unbuffered_p0_EAX~0_43) (= 1 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1837#false} is VALID [2020-07-28 21:26:26,298 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 21:26:26,298 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1712262037] [2020-07-28 21:26:26,298 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:26,298 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:26,299 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1219862093] [2020-07-28 21:26:26,300 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:26:26,300 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:26,300 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:26,312 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 21:26:26,313 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:26,313 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:26,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:26,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:26,314 INFO L87 Difference]: Start difference. First operand 218 states and 600 transitions. Second operand 4 states. [2020-07-28 21:26:26,400 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,400 INFO L93 Difference]: Finished difference Result 242 states and 634 transitions. [2020-07-28 21:26:26,400 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:26:26,400 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:26:26,400 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:26,401 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:26,401 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:26:26,402 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:26,402 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 36 transitions. [2020-07-28 21:26:26,403 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 36 transitions. [2020-07-28 21:26:26,445 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 36 edges. 36 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:26,449 INFO L225 Difference]: With dead ends: 242 [2020-07-28 21:26:26,449 INFO L226 Difference]: Without dead ends: 146 [2020-07-28 21:26:26,450 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 21:26:26,451 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 146 states. [2020-07-28 21:26:26,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,456 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,457 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,458 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,459 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,460 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,461 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,462 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,463 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,464 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,465 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,466 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,467 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,468 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,469 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,470 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,471 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,472 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,473 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,474 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,475 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,476 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,477 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,478 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,479 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,480 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,481 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,482 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,483 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,484 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,485 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,486 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,487 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,488 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 146 to 146. [2020-07-28 21:26:26,488 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:26,488 INFO L82 GeneralOperation]: Start isEquivalent. First operand 146 states. Second operand 146 states. [2020-07-28 21:26:26,488 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:26:26,488 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:26:26,496 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,496 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:26:26,496 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:26:26,497 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:26,497 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:26,497 INFO L74 IsIncluded]: Start isIncluded. First operand 146 states. Second operand 146 states. [2020-07-28 21:26:26,497 INFO L87 Difference]: Start difference. First operand 146 states. Second operand 146 states. [2020-07-28 21:26:26,505 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,505 INFO L93 Difference]: Finished difference Result 146 states and 362 transitions. [2020-07-28 21:26:26,505 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:26:26,506 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:26,506 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:26,506 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:26,506 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:26,506 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 146 states. [2020-07-28 21:26:26,514 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 146 states to 146 states and 362 transitions. [2020-07-28 21:26:26,514 INFO L78 Accepts]: Start accepts. Automaton has 146 states and 362 transitions. Word has length 9 [2020-07-28 21:26:26,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:26,514 INFO L479 AbstractCegarLoop]: Abstraction has 146 states and 362 transitions. [2020-07-28 21:26:26,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:26,514 INFO L276 IsEmpty]: Start isEmpty. Operand 146 states and 362 transitions. [2020-07-28 21:26:26,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:26:26,515 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:26,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:26,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:26:26,515 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:26,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:26,516 INFO L82 PathProgramCache]: Analyzing trace with hash 1379708097, now seen corresponding path program 1 times [2020-07-28 21:26:26,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:26,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1344666640] [2020-07-28 21:26:26,516 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:26,539 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:26,604 INFO L280 TraceCheckUtils]: 0: Hoare triple {2670#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1795~0.base_24|) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24| 1)) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24|)) (= 0 v_~__unbuffered_p1_EAX~0_48) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24|) |v_ULTIMATE.start_main_~#t1795~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= 0 v_~__unbuffered_p0_EAX~0_44) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1795~0.base_24| 4)) (= 0 |v_#NULL.offset_6|) (= 0 |v_ULTIMATE.start_main_~#t1795~0.offset_17|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1795~0.offset=|v_ULTIMATE.start_main_~#t1795~0.offset_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_14|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1795~0.base=|v_ULTIMATE.start_main_~#t1795~0.base_24|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_22|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_19|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1795~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t1797~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1795~0.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1796~0.base, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1797~0.base, ~y~0, ~x~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,605 INFO L280 TraceCheckUtils]: 1: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [165] L768-->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] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,607 INFO L280 TraceCheckUtils]: 2: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [202] L768-1-->L770: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t1796~0.offset_8|) (= (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9|) 0) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1796~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t1796~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1796~0.base_9| 4)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9|) |v_ULTIMATE.start_main_~#t1796~0.offset_8| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t1796~0.base, #length] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,607 INFO L280 TraceCheckUtils]: 3: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [167] L770-->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] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,609 INFO L280 TraceCheckUtils]: 4: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [195] P1ENTRY-->L730: Formula: (and (= v_~__unbuffered_p1_EAX~0_23 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|, ~x~0=v_~x~0_9} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_23, 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, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,609 INFO L280 TraceCheckUtils]: 5: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [196] L770-1-->L772: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1797~0.base_8| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8| 1) |v_#valid_27|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1797~0.base_8|) (= 0 |v_ULTIMATE.start_main_~#t1797~0.offset_8|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8|) |v_ULTIMATE.start_main_~#t1797~0.offset_8| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1797~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1797~0.base] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,610 INFO L280 TraceCheckUtils]: 6: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [169] L772-->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] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,611 INFO L280 TraceCheckUtils]: 7: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,611 INFO L280 TraceCheckUtils]: 8: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [194] P2ENTRY-->L745: 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_~y~0_28 v_~__unbuffered_p2_EAX~0_20)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,612 INFO L280 TraceCheckUtils]: 9: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2672#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:26:26,614 INFO L280 TraceCheckUtils]: 10: Hoare triple {2672#(<= ~__unbuffered_p0_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= 2 v_~__unbuffered_p0_EAX~0_43) (= 1 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2671#false} is VALID [2020-07-28 21:26:26,615 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 21:26:26,615 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1344666640] [2020-07-28 21:26:26,616 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:26,616 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:26:26,616 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1831226031] [2020-07-28 21:26:26,617 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:26:26,617 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:26,617 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:26:26,630 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 21:26:26,631 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:26:26,631 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:26,631 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:26:26,632 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:26:26,632 INFO L87 Difference]: Start difference. First operand 146 states and 362 transitions. Second operand 3 states. [2020-07-28 21:26:26,672 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,673 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-07-28 21:26:26,673 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:26:26,673 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 11 [2020-07-28 21:26:26,673 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:26,673 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:26,674 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:26,674 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:26:26,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 29 transitions. [2020-07-28 21:26:26,675 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 29 transitions. [2020-07-28 21:26:26,709 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 29 edges. 29 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:26,712 INFO L225 Difference]: With dead ends: 140 [2020-07-28 21:26:26,712 INFO L226 Difference]: Without dead ends: 140 [2020-07-28 21:26:26,712 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 21:26:26,714 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 140 states. [2020-07-28 21:26:26,717 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,718 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,719 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,720 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,721 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,722 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,723 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,724 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,725 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,726 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,727 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,728 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,729 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,730 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,731 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,732 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,733 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,734 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,735 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,736 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,737 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,738 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,739 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,740 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,741 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,742 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,743 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,744 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,745 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,746 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,747 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,748 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,749 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,750 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,751 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,752 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,753 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,754 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,755 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:26,755 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 140 to 140. [2020-07-28 21:26:26,755 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:26,755 INFO L82 GeneralOperation]: Start isEquivalent. First operand 140 states. Second operand 140 states. [2020-07-28 21:26:26,756 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:26:26,756 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:26:26,763 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,763 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-07-28 21:26:26,763 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-07-28 21:26:26,764 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:26,764 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:26,764 INFO L74 IsIncluded]: Start isIncluded. First operand 140 states. Second operand 140 states. [2020-07-28 21:26:26,764 INFO L87 Difference]: Start difference. First operand 140 states. Second operand 140 states. [2020-07-28 21:26:26,771 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,771 INFO L93 Difference]: Finished difference Result 140 states and 343 transitions. [2020-07-28 21:26:26,772 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-07-28 21:26:26,772 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:26,772 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:26,773 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:26,773 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:26,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 140 states. [2020-07-28 21:26:26,779 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 140 states to 140 states and 343 transitions. [2020-07-28 21:26:26,780 INFO L78 Accepts]: Start accepts. Automaton has 140 states and 343 transitions. Word has length 11 [2020-07-28 21:26:26,780 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:26,780 INFO L479 AbstractCegarLoop]: Abstraction has 140 states and 343 transitions. [2020-07-28 21:26:26,780 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:26:26,781 INFO L276 IsEmpty]: Start isEmpty. Operand 140 states and 343 transitions. [2020-07-28 21:26:26,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:26:26,781 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:26,781 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:26,782 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:26:26,782 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:26,782 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:26,782 INFO L82 PathProgramCache]: Analyzing trace with hash -53165768, now seen corresponding path program 1 times [2020-07-28 21:26:26,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:26,783 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1928745482] [2020-07-28 21:26:26,783 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:26,802 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:26,846 INFO L280 TraceCheckUtils]: 0: Hoare triple {3375#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1795~0.base_24|) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24| 1)) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24|)) (= 0 v_~__unbuffered_p1_EAX~0_48) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24|) |v_ULTIMATE.start_main_~#t1795~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= 0 v_~__unbuffered_p0_EAX~0_44) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1795~0.base_24| 4)) (= 0 |v_#NULL.offset_6|) (= 0 |v_ULTIMATE.start_main_~#t1795~0.offset_17|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1795~0.offset=|v_ULTIMATE.start_main_~#t1795~0.offset_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_14|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1795~0.base=|v_ULTIMATE.start_main_~#t1795~0.base_24|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_22|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_19|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1795~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t1797~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1795~0.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1796~0.base, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1797~0.base, ~y~0, ~x~0] {3377#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,847 INFO L280 TraceCheckUtils]: 1: Hoare triple {3377#(= 0 ~y~0)} [165] L768-->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] {3377#(= 0 ~y~0)} is VALID [2020-07-28 21:26:26,848 INFO L280 TraceCheckUtils]: 2: Hoare triple {3377#(= 0 ~y~0)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_13 v_~__unbuffered_p0_EAX~0_10) (= 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|, ~y~0=v_~y~0_13} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_10, 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_13, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,849 INFO L280 TraceCheckUtils]: 3: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [202] L768-1-->L770: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t1796~0.offset_8|) (= (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9|) 0) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1796~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t1796~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1796~0.base_9| 4)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9|) |v_ULTIMATE.start_main_~#t1796~0.offset_8| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t1796~0.base, #length] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,850 INFO L280 TraceCheckUtils]: 4: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [167] L770-->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] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,850 INFO L280 TraceCheckUtils]: 5: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [195] P1ENTRY-->L730: Formula: (and (= v_~__unbuffered_p1_EAX~0_23 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|, ~x~0=v_~x~0_9} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_23, 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, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,851 INFO L280 TraceCheckUtils]: 6: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [196] L770-1-->L772: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1797~0.base_8| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8| 1) |v_#valid_27|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1797~0.base_8|) (= 0 |v_ULTIMATE.start_main_~#t1797~0.offset_8|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8|) |v_ULTIMATE.start_main_~#t1797~0.offset_8| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1797~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1797~0.base] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,852 INFO L280 TraceCheckUtils]: 7: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [169] L772-->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] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,853 INFO L280 TraceCheckUtils]: 8: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,854 INFO L280 TraceCheckUtils]: 9: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [194] P2ENTRY-->L745: 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_~y~0_28 v_~__unbuffered_p2_EAX~0_20)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,855 INFO L280 TraceCheckUtils]: 10: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3378#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:26,856 INFO L280 TraceCheckUtils]: 11: Hoare triple {3378#(= 0 ~__unbuffered_p0_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= 2 v_~__unbuffered_p0_EAX~0_43) (= 1 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3376#false} is VALID [2020-07-28 21:26:26,856 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 21:26:26,857 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1928745482] [2020-07-28 21:26:26,857 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:26,857 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:26,857 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1351047457] [2020-07-28 21:26:26,858 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:26,858 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:26,858 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:26,879 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:26,879 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:26,879 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:26,879 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:26,880 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:26,880 INFO L87 Difference]: Start difference. First operand 140 states and 343 transitions. Second operand 4 states. [2020-07-28 21:26:26,955 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:26,956 INFO L93 Difference]: Finished difference Result 200 states and 485 transitions. [2020-07-28 21:26:26,956 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:26:26,956 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:26,956 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:26,957 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:26,957 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:26:26,958 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:26,958 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 33 transitions. [2020-07-28 21:26:26,959 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 33 transitions. [2020-07-28 21:26:26,999 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 33 edges. 33 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:27,001 INFO L225 Difference]: With dead ends: 200 [2020-07-28 21:26:27,002 INFO L226 Difference]: Without dead ends: 110 [2020-07-28 21:26:27,002 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 21:26:27,004 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 110 states. [2020-07-28 21:26:27,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,007 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,008 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,009 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,010 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,011 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,012 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,013 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,014 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,015 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,016 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,017 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,018 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,019 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,020 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,021 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,022 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,023 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,024 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,025 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,026 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,027 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,028 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,029 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,030 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,031 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,032 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,033 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,034 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,035 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,036 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,037 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,038 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,039 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,039 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 110 to 110. [2020-07-28 21:26:27,039 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:27,039 INFO L82 GeneralOperation]: Start isEquivalent. First operand 110 states. Second operand 110 states. [2020-07-28 21:26:27,039 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-28 21:26:27,040 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-28 21:26:27,045 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,045 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-07-28 21:26:27,045 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:26:27,046 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:27,046 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:27,046 INFO L74 IsIncluded]: Start isIncluded. First operand 110 states. Second operand 110 states. [2020-07-28 21:26:27,046 INFO L87 Difference]: Start difference. First operand 110 states. Second operand 110 states. [2020-07-28 21:26:27,052 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,052 INFO L93 Difference]: Finished difference Result 110 states and 265 transitions. [2020-07-28 21:26:27,052 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:26:27,053 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:27,053 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:27,053 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:27,053 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:27,053 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 110 states. [2020-07-28 21:26:27,058 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 110 states to 110 states and 265 transitions. [2020-07-28 21:26:27,059 INFO L78 Accepts]: Start accepts. Automaton has 110 states and 265 transitions. Word has length 12 [2020-07-28 21:26:27,059 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:27,059 INFO L479 AbstractCegarLoop]: Abstraction has 110 states and 265 transitions. [2020-07-28 21:26:27,059 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:27,059 INFO L276 IsEmpty]: Start isEmpty. Operand 110 states and 265 transitions. [2020-07-28 21:26:27,060 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:26:27,060 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:27,060 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:27,060 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:26:27,060 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:27,061 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:27,061 INFO L82 PathProgramCache]: Analyzing trace with hash -179241226, now seen corresponding path program 2 times [2020-07-28 21:26:27,061 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:27,061 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [649728769] [2020-07-28 21:26:27,061 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:27,077 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:27,136 INFO L280 TraceCheckUtils]: 0: Hoare triple {4023#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1795~0.base_24|) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24| 1)) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24|)) (= 0 v_~__unbuffered_p1_EAX~0_48) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24|) |v_ULTIMATE.start_main_~#t1795~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= 0 v_~__unbuffered_p0_EAX~0_44) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1795~0.base_24| 4)) (= 0 |v_#NULL.offset_6|) (= 0 |v_ULTIMATE.start_main_~#t1795~0.offset_17|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1795~0.offset=|v_ULTIMATE.start_main_~#t1795~0.offset_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_14|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1795~0.base=|v_ULTIMATE.start_main_~#t1795~0.base_24|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_22|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_19|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1795~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t1797~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1795~0.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1796~0.base, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1797~0.base, ~y~0, ~x~0] {4023#true} is VALID [2020-07-28 21:26:27,137 INFO L280 TraceCheckUtils]: 1: Hoare triple {4023#true} [165] L768-->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] {4023#true} is VALID [2020-07-28 21:26:27,137 INFO L280 TraceCheckUtils]: 2: Hoare triple {4023#true} [202] L768-1-->L770: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t1796~0.offset_8|) (= (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9|) 0) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1796~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t1796~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1796~0.base_9| 4)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9|) |v_ULTIMATE.start_main_~#t1796~0.offset_8| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t1796~0.base, #length] {4023#true} is VALID [2020-07-28 21:26:27,137 INFO L280 TraceCheckUtils]: 3: Hoare triple {4023#true} [167] L770-->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] {4023#true} is VALID [2020-07-28 21:26:27,138 INFO L280 TraceCheckUtils]: 4: Hoare triple {4023#true} [195] P1ENTRY-->L730: Formula: (and (= v_~__unbuffered_p1_EAX~0_23 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|, ~x~0=v_~x~0_9} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_23, 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, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4023#true} is VALID [2020-07-28 21:26:27,138 INFO L280 TraceCheckUtils]: 5: Hoare triple {4023#true} [196] L770-1-->L772: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1797~0.base_8| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8| 1) |v_#valid_27|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1797~0.base_8|) (= 0 |v_ULTIMATE.start_main_~#t1797~0.offset_8|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8|) |v_ULTIMATE.start_main_~#t1797~0.offset_8| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1797~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1797~0.base] {4023#true} is VALID [2020-07-28 21:26:27,139 INFO L280 TraceCheckUtils]: 6: Hoare triple {4023#true} [169] L772-->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] {4023#true} is VALID [2020-07-28 21:26:27,140 INFO L280 TraceCheckUtils]: 7: Hoare triple {4023#true} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4025#(= 1 ~y~0)} is VALID [2020-07-28 21:26:27,141 INFO L280 TraceCheckUtils]: 8: Hoare triple {4025#(= 1 ~y~0)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_13 v_~__unbuffered_p0_EAX~0_10) (= 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|, ~y~0=v_~y~0_13} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_10, 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_13, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4026#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:27,142 INFO L280 TraceCheckUtils]: 9: Hoare triple {4026#(= 1 ~__unbuffered_p0_EAX~0)} [194] P2ENTRY-->L745: 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_~y~0_28 v_~__unbuffered_p2_EAX~0_20)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4026#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:27,147 INFO L280 TraceCheckUtils]: 10: Hoare triple {4026#(= 1 ~__unbuffered_p0_EAX~0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4026#(= 1 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:26:27,149 INFO L280 TraceCheckUtils]: 11: Hoare triple {4026#(= 1 ~__unbuffered_p0_EAX~0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= 2 v_~__unbuffered_p0_EAX~0_43) (= 1 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4024#false} is VALID [2020-07-28 21:26:27,150 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 21:26:27,150 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [649728769] [2020-07-28 21:26:27,151 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:27,151 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:26:27,152 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1877112967] [2020-07-28 21:26:27,152 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:27,154 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:27,155 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:27,180 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 12 edges. 12 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:27,180 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:27,180 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:27,181 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:27,181 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:27,181 INFO L87 Difference]: Start difference. First operand 110 states and 265 transitions. Second operand 4 states. [2020-07-28 21:26:27,291 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,292 INFO L93 Difference]: Finished difference Result 128 states and 298 transitions. [2020-07-28 21:26:27,292 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:26:27,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:26:27,292 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:27,292 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:27,293 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2020-07-28 21:26:27,293 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:27,294 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 37 transitions. [2020-07-28 21:26:27,294 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 37 transitions. [2020-07-28 21:26:27,343 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 37 edges. 37 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:27,345 INFO L225 Difference]: With dead ends: 128 [2020-07-28 21:26:27,345 INFO L226 Difference]: Without dead ends: 68 [2020-07-28 21:26:27,345 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 21:26:27,346 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 68 states. [2020-07-28 21:26:27,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,348 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,349 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,350 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,351 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,352 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,353 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,354 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,355 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,356 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,357 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,358 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,359 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,360 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,361 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,362 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,363 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,364 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:26:27,364 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 68 to 68. [2020-07-28 21:26:27,364 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:27,364 INFO L82 GeneralOperation]: Start isEquivalent. First operand 68 states. Second operand 68 states. [2020-07-28 21:26:27,365 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2020-07-28 21:26:27,365 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2020-07-28 21:26:27,368 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,368 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-07-28 21:26:27,368 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-07-28 21:26:27,368 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:27,369 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:27,369 INFO L74 IsIncluded]: Start isIncluded. First operand 68 states. Second operand 68 states. [2020-07-28 21:26:27,369 INFO L87 Difference]: Start difference. First operand 68 states. Second operand 68 states. [2020-07-28 21:26:27,372 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,372 INFO L93 Difference]: Finished difference Result 68 states and 144 transitions. [2020-07-28 21:26:27,372 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-07-28 21:26:27,372 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:27,372 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:27,373 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:27,373 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:27,373 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 68 states. [2020-07-28 21:26:27,376 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 68 states to 68 states and 144 transitions. [2020-07-28 21:26:27,376 INFO L78 Accepts]: Start accepts. Automaton has 68 states and 144 transitions. Word has length 12 [2020-07-28 21:26:27,377 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:27,377 INFO L479 AbstractCegarLoop]: Abstraction has 68 states and 144 transitions. [2020-07-28 21:26:27,377 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:27,377 INFO L276 IsEmpty]: Start isEmpty. Operand 68 states and 144 transitions. [2020-07-28 21:26:27,377 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:26:27,378 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:26:27,378 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:26:27,379 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:26:27,401 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:26:27,401 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:26:27,402 INFO L82 PathProgramCache]: Analyzing trace with hash -1246852910, now seen corresponding path program 1 times [2020-07-28 21:26:27,402 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:26:27,402 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [423947454] [2020-07-28 21:26:27,402 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:26:27,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:26:27,452 INFO L280 TraceCheckUtils]: 0: Hoare triple {4432#true} [226] ULTIMATE.startENTRY-->L768: Formula: (let ((.cse0 (store |v_#valid_58| 0 0))) (and (= 0 v_~main$tmp_guard0~0_35) (< |v_#StackHeapBarrier_15| |v_ULTIMATE.start_main_~#t1795~0.base_24|) (= |v_#valid_56| (store .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24| 1)) (= v_~__unbuffered_cnt~0_131 0) (= 0 v_~y~0_65) (= 0 v_~main$tmp_guard1~0_41) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t1795~0.base_24|)) (= 0 v_~__unbuffered_p1_EAX~0_48) (= (store |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24| (store (select |v_#memory_int_18| |v_ULTIMATE.start_main_~#t1795~0.base_24|) |v_ULTIMATE.start_main_~#t1795~0.offset_17| 0)) |v_#memory_int_17|) (= 0 |v_#NULL.base_6|) (= 0 v_~__unbuffered_p0_EAX~0_44) (= |v_#length_19| (store |v_#length_20| |v_ULTIMATE.start_main_~#t1795~0.base_24| 4)) (= 0 |v_#NULL.offset_6|) (= 0 |v_ULTIMATE.start_main_~#t1795~0.offset_17|) (= 0 v_~__unbuffered_p2_EAX~0_44) (< 0 |v_#StackHeapBarrier_15|) (= 0 v_~x~0_20))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_15|, #valid=|v_#valid_58|, #memory_int=|v_#memory_int_18|, #length=|v_#length_20|} OutVars{ULTIMATE.start_main_~#t1795~0.offset=|v_ULTIMATE.start_main_~#t1795~0.offset_17|, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_7|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_6|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_14|, #NULL.offset=|v_#NULL.offset_6|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_41, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_35, #NULL.base=|v_#NULL.base_6|, ULTIMATE.start_main_~#t1795~0.base=|v_ULTIMATE.start_main_~#t1795~0.base_24|, #StackHeapBarrier=|v_#StackHeapBarrier_15|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_48, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_16|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_16|, #valid=|v_#valid_56|, #memory_int=|v_#memory_int_17|, #length=|v_#length_19|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_22|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_44, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_131, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_19|, ~y~0=v_~y~0_65, ~x~0=v_~x~0_20} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1795~0.offset, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t1797~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, #NULL.base, ULTIMATE.start_main_~#t1795~0.base, ~__unbuffered_p0_EAX~0, ~__unbuffered_p1_EAX~0, ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#res, #valid, #memory_int, #length, ULTIMATE.start_main_~#t1796~0.base, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ULTIMATE.start_main_~#t1797~0.base, ~y~0, ~x~0] {4434#(<= ~x~0 0)} is VALID [2020-07-28 21:26:27,453 INFO L280 TraceCheckUtils]: 1: Hoare triple {4434#(<= ~x~0 0)} [165] L768-->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] {4434#(<= ~x~0 0)} is VALID [2020-07-28 21:26:27,454 INFO L280 TraceCheckUtils]: 2: Hoare triple {4434#(<= ~x~0 0)} [202] L768-1-->L770: Formula: (and (= 0 |v_ULTIMATE.start_main_~#t1796~0.offset_8|) (= (select |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9|) 0) (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t1796~0.base_9|) (not (= 0 |v_ULTIMATE.start_main_~#t1796~0.base_9|)) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t1796~0.base_9| 4)) (= |v_#valid_33| (store |v_#valid_34| |v_ULTIMATE.start_main_~#t1796~0.base_9| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t1796~0.base_9|) |v_ULTIMATE.start_main_~#t1796~0.offset_8| 1)))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_34|, #memory_int=|v_#memory_int_14|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, ULTIMATE.start_main_~#t1796~0.offset=|v_ULTIMATE.start_main_~#t1796~0.offset_8|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_4|, #valid=|v_#valid_33|, #memory_int=|v_#memory_int_13|, ULTIMATE.start_main_~#t1796~0.base=|v_ULTIMATE.start_main_~#t1796~0.base_9|, #length=|v_#length_15|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1796~0.offset, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, ULTIMATE.start_main_~#t1796~0.base, #length] {4434#(<= ~x~0 0)} is VALID [2020-07-28 21:26:27,455 INFO L280 TraceCheckUtils]: 3: Hoare triple {4434#(<= ~x~0 0)} [167] L770-->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] {4434#(<= ~x~0 0)} is VALID [2020-07-28 21:26:27,455 INFO L280 TraceCheckUtils]: 4: Hoare triple {4434#(<= ~x~0 0)} [195] P1ENTRY-->L730: Formula: (and (= v_~__unbuffered_p1_EAX~0_23 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|, ~x~0=v_~x~0_9} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_23, 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, ~__unbuffered_p1_EAX~0, P1Thread1of1ForFork1_~arg.base] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,456 INFO L280 TraceCheckUtils]: 5: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [196] L770-1-->L772: Formula: (and (= |v_#length_13| (store |v_#length_14| |v_ULTIMATE.start_main_~#t1797~0.base_8| 4)) (not (= 0 |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8| 1) |v_#valid_27|) (< |v_#StackHeapBarrier_9| |v_ULTIMATE.start_main_~#t1797~0.base_8|) (= 0 |v_ULTIMATE.start_main_~#t1797~0.offset_8|) (= 0 (select |v_#valid_28| |v_ULTIMATE.start_main_~#t1797~0.base_8|)) (= (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t1797~0.base_8|) |v_ULTIMATE.start_main_~#t1797~0.offset_8| 2)) |v_#memory_int_11|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_9|, #valid=|v_#valid_28|, #memory_int=|v_#memory_int_12|, #length=|v_#length_14|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_9|, ULTIMATE.start_main_~#t1797~0.offset=|v_ULTIMATE.start_main_~#t1797~0.offset_8|, #valid=|v_#valid_27|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_3|, #memory_int=|v_#memory_int_11|, #length=|v_#length_13|, ULTIMATE.start_main_~#t1797~0.base=|v_ULTIMATE.start_main_~#t1797~0.base_8|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t1797~0.offset, #valid, ULTIMATE.start_main_#t~nondet3, #memory_int, #length, ULTIMATE.start_main_~#t1797~0.base] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,457 INFO L280 TraceCheckUtils]: 6: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [169] L772-->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] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,457 INFO L280 TraceCheckUtils]: 7: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [154] L730-->L733: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,458 INFO L280 TraceCheckUtils]: 8: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [194] P2ENTRY-->L745: 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_~y~0_28 v_~__unbuffered_p2_EAX~0_20)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} 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_20, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~y~0=v_~y~0_28} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,460 INFO L280 TraceCheckUtils]: 9: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [160] L745-->L748: Formula: (= v_~y~0_4 2) InVars {} OutVars{~y~0=v_~y~0_4} AuxVars[] AssignedVars[~y~0] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,464 INFO L280 TraceCheckUtils]: 10: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [177] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_~y~0_13 v_~__unbuffered_p0_EAX~0_10) (= 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|, ~y~0=v_~y~0_13} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_10, 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_13, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_4, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_4} AuxVars[] AssignedVars[~__unbuffered_p0_EAX~0, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,465 INFO L280 TraceCheckUtils]: 11: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [207] L772-1-->L2: Formula: (and (= |v_ULTIMATE.start_assume_abort_if_not_#in~cond_8| (mod v_~main$tmp_guard0~0_22 256)) (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_91))) (or (and (= 1 v_~main$tmp_guard0~0_22) .cse0) (and (not .cse0) (= 0 v_~main$tmp_guard0~0_22))))) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_8|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_10, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_91, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_22} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {4435#(<= ~__unbuffered_p1_EAX~0 0)} is VALID [2020-07-28 21:26:27,467 INFO L280 TraceCheckUtils]: 12: Hoare triple {4435#(<= ~__unbuffered_p1_EAX~0 0)} [225] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 2 v_~y~0_64) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_26)) (= 1 v_~__unbuffered_p1_EAX~0_47) (= 2 v_~__unbuffered_p0_EAX~0_43) (= 1 v_~__unbuffered_p2_EAX~0_43) (= v_ULTIMATE.start___VERIFIER_assert_~expression_17 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_11| (mod v_~main$tmp_guard1~0_40 256)) (= 0 v_~main$tmp_guard1~0_40) (= v_ULTIMATE.start_assume_abort_if_not_~cond_26 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|)) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_24|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_43, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_17, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_26, ~__unbuffered_p1_EAX~0=v_~__unbuffered_p1_EAX~0_47, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_40, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_43, ~y~0=v_~y~0_64, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_11|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {4433#false} is VALID [2020-07-28 21:26:27,467 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 21:26:27,467 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [423947454] [2020-07-28 21:26:27,468 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:26:27,468 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:26:27,468 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2071449655] [2020-07-28 21:26:27,468 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:26:27,469 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:26:27,469 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:26:27,487 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 21:26:27,487 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:26:27,487 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:26:27,487 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:26:27,488 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:26:27,488 INFO L87 Difference]: Start difference. First operand 68 states and 144 transitions. Second operand 4 states. [2020-07-28 21:26:27,532 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,533 INFO L93 Difference]: Finished difference Result 56 states and 112 transitions. [2020-07-28 21:26:27,533 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:26:27,533 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 13 [2020-07-28 21:26:27,533 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:26:27,533 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-07-28 21:26:27,534 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:26:27,534 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 21 transitions. [2020-07-28 21:26:27,534 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 21 transitions. [2020-07-28 21:26:27,559 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 21 edges. 21 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:26:27,560 INFO L225 Difference]: With dead ends: 56 [2020-07-28 21:26:27,560 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:26:27,560 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 21:26:27,560 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:26:27,561 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:26:27,561 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:26:27,561 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:27,561 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:27,561 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:27,561 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,561 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:26:27,562 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:26:27,562 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:27,562 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:27,562 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:27,562 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:26:27,562 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:26:27,562 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:26:27,563 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:26:27,563 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:27,563 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:26:27,563 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:26:27,563 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:26:27,563 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:26:27,563 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:26:27,564 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 13 [2020-07-28 21:26:27,564 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:26:27,564 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:26:27,564 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:26:27,564 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:26:27,564 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:26:27,564 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:26:27,568 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:26:27 BasicIcfg [2020-07-28 21:26:27,568 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:26:27,569 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:26:27,569 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:26:27,569 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:26:27,570 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:26:22" (3/4) ... [2020-07-28 21:26:27,573 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:26:27,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:26:27,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:26:27,580 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:26:27,585 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:26:27,585 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:26:27,585 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:26:27,632 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:26:27,632 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:26:27,634 INFO L168 Benchmark]: Toolchain (without parser) took 6422.44 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 313.5 MB). Free memory was 957.5 MB in the beginning and 1.3 GB in the end (delta: -315.1 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:26:27,635 INFO L168 Benchmark]: CDTParser took 0.29 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 21:26:27,635 INFO L168 Benchmark]: CACSL2BoogieTranslator took 742.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. [2020-07-28 21:26:27,636 INFO L168 Benchmark]: Boogie Procedure Inliner took 85.13 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 21:26:27,636 INFO L168 Benchmark]: Boogie Preprocessor took 30.39 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 21:26:27,637 INFO L168 Benchmark]: RCFGBuilder took 499.32 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 21:26:27,637 INFO L168 Benchmark]: TraceAbstraction took 4993.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -209.2 MB). There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:26:27,638 INFO L168 Benchmark]: Witness Printer took 63.07 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. [2020-07-28 21:26:27,641 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 0.29 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 742.01 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 140.0 MB). Free memory was 957.5 MB in the beginning and 1.1 GB in the end (delta: -144.2 MB). Peak memory consumption was 21.9 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 85.13 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 30.39 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 499.32 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 4993.48 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 173.5 MB). Free memory was 1.1 GB in the beginning and 1.3 GB in the end (delta: -209.2 MB). There was no memory consumed. Max. memory is 11.5 GB. * Witness Printer took 63.07 ms. Allocated memory is still 1.3 GB. Free memory was 1.3 GB in the beginning and 1.3 GB in the end (delta: 24 B). Peak memory consumption was 24 B. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.5s, 78 ProgramPointsBefore, 31 ProgramPointsAfterwards, 70 TransitionsBefore, 22 TransitionsAfterwards, 1260 CoEnabledTransitionPairs, 7 FixpointIterations, 14 TrivialSequentialCompositions, 37 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 8 ConcurrentYvCompositions, 1 ChoiceCompositions, 667 VarBasedMoverChecksPositive, 36 VarBasedMoverChecksNegative, 12 SemBasedMoverChecksPositive, 35 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.7s, 0 MoverChecksTotal, 2700 CheckedPairsTotal, 59 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, 69 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 4.8s, OverallIterations: 6, TraceHistogramMax: 1, AutomataDifference: 0.8s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.6s, HoareTripleCheckerStatistics: 104 SDtfs, 88 SDslu, 87 SDs, 0 SdLazy, 37 SolverSat, 6 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.0s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 16 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 14 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=298occurred 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, 6 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.4s InterpolantComputationTime, 65 NumberOfCodeBlocks, 65 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 59 ConstructedInterpolants, 0 QuantifiedInterpolants, 1643 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 6 InterpolantComputations, 6 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Received shutdown request...