./Ultimate.py --spec ../sv-benchmarks/c/properties/unreach-call.prp --file ../sv-benchmarks/c/pthread-wmm/safe018_pso.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/safe018_pso.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 70bb80c0f7a639b7e5f0c3b49ed6deddcbe211d1 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. 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 21:36:43,487 INFO L177 SettingsManager]: Resetting all preferences to default values... [2020-07-28 21:36:43,490 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2020-07-28 21:36:43,510 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2020-07-28 21:36:43,511 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2020-07-28 21:36:43,513 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2020-07-28 21:36:43,515 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2020-07-28 21:36:43,530 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2020-07-28 21:36:43,532 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2020-07-28 21:36:43,535 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2020-07-28 21:36:43,537 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2020-07-28 21:36:43,539 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2020-07-28 21:36:43,540 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2020-07-28 21:36:43,544 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2020-07-28 21:36:43,545 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2020-07-28 21:36:43,547 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2020-07-28 21:36:43,549 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2020-07-28 21:36:43,551 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2020-07-28 21:36:43,555 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2020-07-28 21:36:43,560 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2020-07-28 21:36:43,564 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2020-07-28 21:36:43,566 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2020-07-28 21:36:43,570 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2020-07-28 21:36:43,572 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2020-07-28 21:36:43,576 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2020-07-28 21:36:43,576 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2020-07-28 21:36:43,576 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2020-07-28 21:36:43,579 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2020-07-28 21:36:43,579 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2020-07-28 21:36:43,580 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2020-07-28 21:36:43,581 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2020-07-28 21:36:43,582 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2020-07-28 21:36:43,583 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2020-07-28 21:36:43,584 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2020-07-28 21:36:43,586 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2020-07-28 21:36:43,587 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2020-07-28 21:36:43,588 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2020-07-28 21:36:43,588 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2020-07-28 21:36:43,588 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2020-07-28 21:36:43,589 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2020-07-28 21:36:43,591 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2020-07-28 21:36:43,592 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-Reach-32bit-Automizer_Default.epf [2020-07-28 21:36:43,610 INFO L113 SettingsManager]: Loading preferences was successful [2020-07-28 21:36:43,611 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2020-07-28 21:36:43,612 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2020-07-28 21:36:43,612 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2020-07-28 21:36:43,613 INFO L138 SettingsManager]: * Use SBE=true [2020-07-28 21:36:43,613 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2020-07-28 21:36:43,613 INFO L138 SettingsManager]: * sizeof long=4 [2020-07-28 21:36:43,613 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2020-07-28 21:36:43,614 INFO L138 SettingsManager]: * sizeof POINTER=4 [2020-07-28 21:36:43,614 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2020-07-28 21:36:43,614 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2020-07-28 21:36:43,615 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2020-07-28 21:36:43,615 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2020-07-28 21:36:43,615 INFO L138 SettingsManager]: * sizeof long double=12 [2020-07-28 21:36:43,616 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2020-07-28 21:36:43,616 INFO L138 SettingsManager]: * Use constant arrays=true [2020-07-28 21:36:43,616 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2020-07-28 21:36:43,616 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2020-07-28 21:36:43,617 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2020-07-28 21:36:43,617 INFO L138 SettingsManager]: * To the following directory=./dump/ [2020-07-28 21:36:43,617 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2020-07-28 21:36:43,618 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2020-07-28 21:36:43,618 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2020-07-28 21:36:43,618 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2020-07-28 21:36:43,618 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2020-07-28 21:36:43,619 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2020-07-28 21:36:43,619 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2020-07-28 21:36:43,619 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2020-07-28 21:36:43,620 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2020-07-28 21:36:43,620 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 -> 70bb80c0f7a639b7e5f0c3b49ed6deddcbe211d1 [2020-07-28 21:36:43,921 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2020-07-28 21:36:43,934 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2020-07-28 21:36:43,938 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2020-07-28 21:36:43,939 INFO L271 PluginConnector]: Initializing CDTParser... [2020-07-28 21:36:43,940 INFO L275 PluginConnector]: CDTParser initialized [2020-07-28 21:36:43,941 INFO L429 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i [2020-07-28 21:36:44,003 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c0576d1/7dde3089bd1d4756a553c581d104895b/FLAG2b30c3c1d [2020-07-28 21:36:44,499 INFO L306 CDTParser]: Found 1 translation units. [2020-07-28 21:36:44,500 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/pthread-wmm/safe018_pso.oepc.i [2020-07-28 21:36:44,515 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c0576d1/7dde3089bd1d4756a553c581d104895b/FLAG2b30c3c1d [2020-07-28 21:36:44,806 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/63c0576d1/7dde3089bd1d4756a553c581d104895b [2020-07-28 21:36:44,810 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2020-07-28 21:36:44,813 INFO L131 ToolchainWalker]: Walking toolchain with 6 elements. [2020-07-28 21:36:44,815 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2020-07-28 21:36:44,815 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2020-07-28 21:36:44,819 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2020-07-28 21:36:44,820 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:36:44" (1/1) ... [2020-07-28 21:36:44,823 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@14ed3b39 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:44, skipping insertion in model container [2020-07-28 21:36:44,824 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 28.07 09:36:44" (1/1) ... [2020-07-28 21:36:44,832 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2020-07-28 21:36:44,898 INFO L178 MainTranslator]: Built tables and reachable declarations [2020-07-28 21:36:45,374 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:36:45,387 INFO L203 MainTranslator]: Completed pre-run [2020-07-28 21:36:45,439 INFO L206 PostProcessor]: Analyzing one entry point: main [2020-07-28 21:36:45,517 INFO L208 MainTranslator]: Completed translation [2020-07-28 21:36:45,518 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45 WrapperNode [2020-07-28 21:36:45,518 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2020-07-28 21:36:45,519 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2020-07-28 21:36:45,519 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2020-07-28 21:36:45,519 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2020-07-28 21:36:45,528 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,546 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,574 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2020-07-28 21:36:45,575 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2020-07-28 21:36:45,575 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2020-07-28 21:36:45,575 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2020-07-28 21:36:45,585 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,585 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,588 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,589 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,597 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,604 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,607 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (1/1) ... [2020-07-28 21:36:45,610 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2020-07-28 21:36:45,611 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2020-07-28 21:36:45,611 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2020-07-28 21:36:45,611 INFO L275 PluginConnector]: RCFGBuilder initialized [2020-07-28 21:36:45,612 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (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 21:36:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2020-07-28 21:36:45,683 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2020-07-28 21:36:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2020-07-28 21:36:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2020-07-28 21:36:45,684 INFO L130 BoogieDeclarations]: Found specification of procedure P0 [2020-07-28 21:36:45,684 INFO L138 BoogieDeclarations]: Found implementation of procedure P0 [2020-07-28 21:36:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure P1 [2020-07-28 21:36:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P1 [2020-07-28 21:36:45,685 INFO L130 BoogieDeclarations]: Found specification of procedure P2 [2020-07-28 21:36:45,685 INFO L138 BoogieDeclarations]: Found implementation of procedure P2 [2020-07-28 21:36:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2020-07-28 21:36:45,686 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2020-07-28 21:36:45,686 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2020-07-28 21:36:45,688 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 21:36:46,119 INFO L290 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2020-07-28 21:36:46,120 INFO L295 CfgBuilder]: Removed 8 assume(true) statements. [2020-07-28 21:36:46,124 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:36:46 BoogieIcfgContainer [2020-07-28 21:36:46,125 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2020-07-28 21:36:46,126 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2020-07-28 21:36:46,126 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2020-07-28 21:36:46,130 INFO L275 PluginConnector]: TraceAbstraction initialized [2020-07-28 21:36:46,130 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 28.07 09:36:44" (1/3) ... [2020-07-28 21:36:46,131 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b632145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:36:46, skipping insertion in model container [2020-07-28 21:36:46,131 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 28.07 09:36:45" (2/3) ... [2020-07-28 21:36:46,132 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@3b632145 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 28.07 09:36:46, skipping insertion in model container [2020-07-28 21:36:46,132 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:36:46" (3/3) ... [2020-07-28 21:36:46,134 INFO L109 eAbstractionObserver]: Analyzing ICFG safe018_pso.oepc.i [2020-07-28 21:36:46,144 WARN L146 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2020-07-28 21:36:46,145 INFO L157 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2020-07-28 21:36:46,153 INFO L169 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2020-07-28 21:36:46,154 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2020-07-28 21:36:46,188 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,189 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,189 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,190 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,190 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,191 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,192 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,192 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,193 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,194 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,194 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,195 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,195 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,199 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,200 WARN L313 ript$VariableManager]: TermVariabe |P0Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,200 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,201 WARN L313 ript$VariableManager]: TermVariabe P0Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,208 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,209 WARN L313 ript$VariableManager]: TermVariabe P1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,209 WARN L313 ript$VariableManager]: TermVariabe |P1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,212 WARN L313 ript$VariableManager]: TermVariabe P2Thread1of1ForFork2_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,212 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,213 WARN L313 ript$VariableManager]: TermVariabe |P2Thread1of1ForFork2_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2020-07-28 21:36:46,229 INFO L251 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2020-07-28 21:36:46,250 INFO L375 AbstractCegarLoop]: Interprodecural is true [2020-07-28 21:36:46,250 INFO L376 AbstractCegarLoop]: Hoare is true [2020-07-28 21:36:46,250 INFO L377 AbstractCegarLoop]: Compute interpolants for FPandBP [2020-07-28 21:36:46,251 INFO L378 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2020-07-28 21:36:46,251 INFO L379 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2020-07-28 21:36:46,251 INFO L380 AbstractCegarLoop]: Difference is false [2020-07-28 21:36:46,251 INFO L381 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2020-07-28 21:36:46,252 INFO L385 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2020-07-28 21:36:46,268 INFO L152 etLargeBlockEncoding]: Starting large block encoding on Petri net that has 77 places, 69 transitions, 153 flow [2020-07-28 21:36:46,270 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:36:46,315 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:36:46,315 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:36:46,320 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:36:46,323 INFO L71 FinitePrefix]: Start finitePrefix. Operand has 77 places, 69 transitions, 153 flow [2020-07-28 21:36:46,345 INFO L129 PetriNetUnfolder]: 2/66 cut-off events. [2020-07-28 21:36:46,346 INFO L130 PetriNetUnfolder]: For 0/0 co-relation queries the response was YES. [2020-07-28 21:36:46,347 INFO L80 FinitePrefix]: Finished finitePrefix Result has 76 conditions, 66 events. 2/66 cut-off events. For 0/0 co-relation queries the response was YES. Maximal size of possible extension queue 3. Compared 45 event pairs, 0 based on Foata normal form. 0/63 useless extension candidates. Maximal degree in co-relation 54. Up to 2 conditions per place. [2020-07-28 21:36:46,349 INFO L158 etLargeBlockEncoding]: Number of co-enabled transitions 1178 [2020-07-28 21:36:46,350 INFO L170 etLargeBlockEncoding]: Semantic Check. [2020-07-28 21:36:48,618 INFO L206 etLargeBlockEncoding]: Checked pairs total: 1996 [2020-07-28 21:36:48,618 INFO L214 etLargeBlockEncoding]: Total number of compositions: 58 [2020-07-28 21:36:48,623 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 30 places, 20 transitions, 55 flow [2020-07-28 21:36:48,645 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 226 states. [2020-07-28 21:36:48,647 INFO L276 IsEmpty]: Start isEmpty. Operand 226 states. [2020-07-28 21:36:48,655 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 9 [2020-07-28 21:36:48,655 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:48,656 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:48,657 INFO L427 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:48,663 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:48,663 INFO L82 PathProgramCache]: Analyzing trace with hash -1153400973, now seen corresponding path program 1 times [2020-07-28 21:36:48,674 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:48,674 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2085731165] [2020-07-28 21:36:48,675 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:48,797 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:48,945 INFO L280 TraceCheckUtils]: 0: Hoare triple {532#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:36:48,947 INFO L280 TraceCheckUtils]: 1: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [162] L765-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:36:48,948 INFO L280 TraceCheckUtils]: 2: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:36:48,949 INFO L280 TraceCheckUtils]: 3: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [164] L767-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:36:48,950 INFO L280 TraceCheckUtils]: 4: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:36:48,951 INFO L280 TraceCheckUtils]: 5: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [166] L769-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:36:48,952 INFO L280 TraceCheckUtils]: 6: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {534#(<= ~__unbuffered_p2_EAX~0 0)} is VALID [2020-07-28 21:36:48,953 INFO L280 TraceCheckUtils]: 7: Hoare triple {534#(<= ~__unbuffered_p2_EAX~0 0)} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {533#false} is VALID [2020-07-28 21:36:48,956 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 21:36:48,956 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2085731165] [2020-07-28 21:36:48,958 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:48,958 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:36:48,959 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [374298364] [2020-07-28 21:36:48,965 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:36:48,966 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:48,970 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:36:48,991 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 21:36:48,992 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:36:48,992 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:49,002 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:36:49,003 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:36:49,005 INFO L87 Difference]: Start difference. First operand 226 states. Second operand 3 states. [2020-07-28 21:36:49,114 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,114 INFO L93 Difference]: Finished difference Result 214 states and 593 transitions. [2020-07-28 21:36:49,115 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:36:49,115 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 8 [2020-07-28 21:36:49,115 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:49,117 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:36:49,118 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:36:49,118 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:36:49,119 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 25 transitions. [2020-07-28 21:36:49,119 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 25 transitions. [2020-07-28 21:36:49,153 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 25 edges. 25 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:49,174 INFO L225 Difference]: With dead ends: 214 [2020-07-28 21:36:49,175 INFO L226 Difference]: Without dead ends: 166 [2020-07-28 21:36:49,177 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 21:36:49,199 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 166 states. [2020-07-28 21:36:49,220 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,222 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,223 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,224 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,225 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,226 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,227 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,228 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,229 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,230 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,231 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,232 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,233 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,234 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,235 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,236 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,237 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,238 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,239 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,240 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,240 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,240 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,240 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,241 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,242 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,243 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,244 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,245 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,246 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,247 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,248 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,249 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,250 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,251 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,252 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,253 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,254 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,255 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,256 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,257 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,258 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,259 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,260 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,261 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,262 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 166 to 166. [2020-07-28 21:36:49,262 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:49,263 INFO L82 GeneralOperation]: Start isEquivalent. First operand 166 states. Second operand 166 states. [2020-07-28 21:36:49,263 INFO L74 IsIncluded]: Start isIncluded. First operand 166 states. Second operand 166 states. [2020-07-28 21:36:49,263 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 166 states. [2020-07-28 21:36:49,280 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,280 INFO L93 Difference]: Finished difference Result 166 states and 441 transitions. [2020-07-28 21:36:49,280 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-07-28 21:36:49,282 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:49,283 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:49,283 INFO L74 IsIncluded]: Start isIncluded. First operand 166 states. Second operand 166 states. [2020-07-28 21:36:49,283 INFO L87 Difference]: Start difference. First operand 166 states. Second operand 166 states. [2020-07-28 21:36:49,300 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,300 INFO L93 Difference]: Finished difference Result 166 states and 441 transitions. [2020-07-28 21:36:49,300 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-07-28 21:36:49,302 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:49,302 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:49,302 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:49,303 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:49,303 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 166 states. [2020-07-28 21:36:49,316 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 166 states to 166 states and 441 transitions. [2020-07-28 21:36:49,318 INFO L78 Accepts]: Start accepts. Automaton has 166 states and 441 transitions. Word has length 8 [2020-07-28 21:36:49,318 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:49,318 INFO L479 AbstractCegarLoop]: Abstraction has 166 states and 441 transitions. [2020-07-28 21:36:49,319 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:36:49,319 INFO L276 IsEmpty]: Start isEmpty. Operand 166 states and 441 transitions. [2020-07-28 21:36:49,320 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 10 [2020-07-28 21:36:49,320 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:49,320 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:49,320 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2020-07-28 21:36:49,320 INFO L427 AbstractCegarLoop]: === Iteration 2 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:49,321 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:49,321 INFO L82 PathProgramCache]: Analyzing trace with hash -1395710546, now seen corresponding path program 1 times [2020-07-28 21:36:49,321 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:49,321 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [734389871] [2020-07-28 21:36:49,321 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:49,356 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:49,442 INFO L280 TraceCheckUtils]: 0: Hoare triple {1415#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:36:49,443 INFO L280 TraceCheckUtils]: 1: Hoare triple {1417#(= 0 ~x~0)} [162] L765-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:36:49,444 INFO L280 TraceCheckUtils]: 2: Hoare triple {1417#(= 0 ~x~0)} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:36:49,445 INFO L280 TraceCheckUtils]: 3: Hoare triple {1417#(= 0 ~x~0)} [164] L767-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:36:49,447 INFO L280 TraceCheckUtils]: 4: Hoare triple {1417#(= 0 ~x~0)} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:36:49,448 INFO L280 TraceCheckUtils]: 5: Hoare triple {1417#(= 0 ~x~0)} [166] L769-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {1417#(= 0 ~x~0)} is VALID [2020-07-28 21:36:49,449 INFO L280 TraceCheckUtils]: 6: Hoare triple {1417#(= 0 ~x~0)} [179] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_9 v_~x~0_7) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} 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_9, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {1418#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:36:49,450 INFO L280 TraceCheckUtils]: 7: Hoare triple {1418#(= 0 ~__unbuffered_p2_EAX~0)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {1418#(= 0 ~__unbuffered_p2_EAX~0)} is VALID [2020-07-28 21:36:49,452 INFO L280 TraceCheckUtils]: 8: Hoare triple {1418#(= 0 ~__unbuffered_p2_EAX~0)} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {1416#false} is VALID [2020-07-28 21:36:49,452 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 21:36:49,453 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [734389871] [2020-07-28 21:36:49,453 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:49,453 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:36:49,454 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [68141117] [2020-07-28 21:36:49,455 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:36:49,455 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:49,455 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:36:49,475 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 21:36:49,476 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:36:49,476 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:49,476 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:36:49,476 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:36:49,476 INFO L87 Difference]: Start difference. First operand 166 states and 441 transitions. Second operand 4 states. [2020-07-28 21:36:49,554 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,554 INFO L93 Difference]: Finished difference Result 202 states and 516 transitions. [2020-07-28 21:36:49,554 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:36:49,555 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 9 [2020-07-28 21:36:49,555 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:49,555 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:49,556 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:36:49,556 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:49,557 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 34 transitions. [2020-07-28 21:36:49,557 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 34 transitions. [2020-07-28 21:36:49,602 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 34 edges. 34 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:49,607 INFO L225 Difference]: With dead ends: 202 [2020-07-28 21:36:49,607 INFO L226 Difference]: Without dead ends: 130 [2020-07-28 21:36:49,608 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 21:36:49,611 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 130 states. [2020-07-28 21:36:49,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,618 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,619 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,620 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,621 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,622 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,623 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,624 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,625 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,626 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,627 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,628 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,629 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,630 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,631 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,632 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,633 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,634 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,635 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,636 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,637 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,638 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,639 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,640 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,641 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,642 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,643 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,644 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,645 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,646 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,647 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,648 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,649 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,650 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,651 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,652 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,653 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,654 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,655 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 130 to 130. [2020-07-28 21:36:49,656 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:49,656 INFO L82 GeneralOperation]: Start isEquivalent. First operand 130 states. Second operand 130 states. [2020-07-28 21:36:49,656 INFO L74 IsIncluded]: Start isIncluded. First operand 130 states. Second operand 130 states. [2020-07-28 21:36:49,656 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 130 states. [2020-07-28 21:36:49,663 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,664 INFO L93 Difference]: Finished difference Result 130 states and 322 transitions. [2020-07-28 21:36:49,664 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-07-28 21:36:49,665 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:49,665 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:49,666 INFO L74 IsIncluded]: Start isIncluded. First operand 130 states. Second operand 130 states. [2020-07-28 21:36:49,666 INFO L87 Difference]: Start difference. First operand 130 states. Second operand 130 states. [2020-07-28 21:36:49,674 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,675 INFO L93 Difference]: Finished difference Result 130 states and 322 transitions. [2020-07-28 21:36:49,675 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-07-28 21:36:49,676 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:49,676 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:49,676 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:49,676 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:49,677 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 130 states. [2020-07-28 21:36:49,683 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 130 states to 130 states and 322 transitions. [2020-07-28 21:36:49,684 INFO L78 Accepts]: Start accepts. Automaton has 130 states and 322 transitions. Word has length 9 [2020-07-28 21:36:49,684 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:49,684 INFO L479 AbstractCegarLoop]: Abstraction has 130 states and 322 transitions. [2020-07-28 21:36:49,685 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:36:49,685 INFO L276 IsEmpty]: Start isEmpty. Operand 130 states and 322 transitions. [2020-07-28 21:36:49,685 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 11 [2020-07-28 21:36:49,686 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:49,686 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:49,686 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable1 [2020-07-28 21:36:49,686 INFO L427 AbstractCegarLoop]: === Iteration 3 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:49,687 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:49,687 INFO L82 PathProgramCache]: Analyzing trace with hash -316797667, now seen corresponding path program 1 times [2020-07-28 21:36:49,687 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:49,688 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1781426149] [2020-07-28 21:36:49,688 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:49,709 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:49,748 INFO L280 TraceCheckUtils]: 0: Hoare triple {2145#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,750 INFO L280 TraceCheckUtils]: 1: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [162] L765-->P0ENTRY: Formula: (and (= 0 v_P0Thread1of1ForFork0_thidvar0_2) (= 0 |v_P0Thread1of1ForFork0_#in~arg.base_3|) (= 0 |v_P0Thread1of1ForFork0_#in~arg.offset_3|)) InVars {} OutVars{P0Thread1of1ForFork0_#in~arg.offset=|v_P0Thread1of1ForFork0_#in~arg.offset_3|, P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_3|, P0Thread1of1ForFork0_thidvar0=v_P0Thread1of1ForFork0_thidvar0_2, P0Thread1of1ForFork0_#in~arg.base=|v_P0Thread1of1ForFork0_#in~arg.base_3|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_3|, P0Thread1of1ForFork0_~arg.base=v_P0Thread1of1ForFork0_~arg.base_3, P0Thread1of1ForFork0_~arg.offset=v_P0Thread1of1ForFork0_~arg.offset_3} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#in~arg.offset, P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_thidvar0, P0Thread1of1ForFork0_#in~arg.base, P0Thread1of1ForFork0_#res.base, P0Thread1of1ForFork0_~arg.base, P0Thread1of1ForFork0_~arg.offset] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,750 INFO L280 TraceCheckUtils]: 2: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,751 INFO L280 TraceCheckUtils]: 3: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [164] L767-->P1ENTRY: Formula: (and (= 1 v_P1Thread1of1ForFork1_thidvar0_2) (= 0 |v_P1Thread1of1ForFork1_#in~arg.base_3|) (= 0 |v_P1Thread1of1ForFork1_#in~arg.offset_3|)) InVars {} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_3, P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_3|, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_3, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_3|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_3|, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_3|, P1Thread1of1ForFork1_thidvar0=v_P1Thread1of1ForFork1_thidvar0_2} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_#res.offset, P1Thread1of1ForFork1_~arg.base, P1Thread1of1ForFork1_#in~arg.base, P1Thread1of1ForFork1_#in~arg.offset, P1Thread1of1ForFork1_#res.base, P1Thread1of1ForFork1_thidvar0] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,752 INFO L280 TraceCheckUtils]: 4: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,753 INFO L280 TraceCheckUtils]: 5: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [166] L769-->P2ENTRY: Formula: (and (= 0 |v_P2Thread1of1ForFork2_#in~arg.base_3|) (= 0 |v_P2Thread1of1ForFork2_#in~arg.offset_3|) (= 2 v_P2Thread1of1ForFork2_thidvar0_2)) InVars {} OutVars{P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_3|, P2Thread1of1ForFork2_~arg.base=v_P2Thread1of1ForFork2_~arg.base_3, P2Thread1of1ForFork2_~arg.offset=v_P2Thread1of1ForFork2_~arg.offset_3, P2Thread1of1ForFork2_thidvar0=v_P2Thread1of1ForFork2_thidvar0_2, P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_3|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_3|, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_3|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#in~arg.offset, P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, P2Thread1of1ForFork2_thidvar0, P2Thread1of1ForFork2_#res.base, P2Thread1of1ForFork2_#in~arg.base, P2Thread1of1ForFork2_#res.offset] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,754 INFO L280 TraceCheckUtils]: 6: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,755 INFO L280 TraceCheckUtils]: 7: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [189] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,756 INFO L280 TraceCheckUtils]: 8: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [179] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_9 v_~x~0_7) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} 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_9, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2147#(<= ~__unbuffered_p0_EAX~0 0)} is VALID [2020-07-28 21:36:49,757 INFO L280 TraceCheckUtils]: 9: Hoare triple {2147#(<= ~__unbuffered_p0_EAX~0 0)} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2146#false} is VALID [2020-07-28 21:36:49,758 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 21:36:49,758 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1781426149] [2020-07-28 21:36:49,758 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:49,758 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [1] imperfect sequences [] total 1 [2020-07-28 21:36:49,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1755293050] [2020-07-28 21:36:49,759 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:36:49,760 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:49,760 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states. [2020-07-28 21:36:49,774 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 10 edges. 10 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:49,774 INFO L459 AbstractCegarLoop]: Interpolant automaton has 3 states [2020-07-28 21:36:49,774 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:49,775 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2020-07-28 21:36:49,775 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2020-07-28 21:36:49,775 INFO L87 Difference]: Start difference. First operand 130 states and 322 transitions. Second operand 3 states. [2020-07-28 21:36:49,815 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,815 INFO L93 Difference]: Finished difference Result 124 states and 303 transitions. [2020-07-28 21:36:49,815 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2020-07-28 21:36:49,815 INFO L78 Accepts]: Start accepts. Automaton has 3 states. Word has length 10 [2020-07-28 21:36:49,816 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:49,816 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:36:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:36:49,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 3 states. [2020-07-28 21:36:49,817 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 3 states to 3 states and 27 transitions. [2020-07-28 21:36:49,818 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 3 states and 27 transitions. [2020-07-28 21:36:49,851 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 27 edges. 27 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:49,854 INFO L225 Difference]: With dead ends: 124 [2020-07-28 21:36:49,854 INFO L226 Difference]: Without dead ends: 124 [2020-07-28 21:36:49,854 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 21:36:49,858 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 124 states. [2020-07-28 21:36:49,868 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,870 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,871 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,872 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,873 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,874 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,875 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,876 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,877 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,878 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,879 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,880 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,881 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,882 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,883 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,884 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,885 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,886 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,887 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,888 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,889 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,890 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,891 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,892 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,895 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,896 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,897 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,898 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,899 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,900 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,901 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,903 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,904 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,905 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,906 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,907 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,909 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:49,909 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 124 to 124. [2020-07-28 21:36:49,910 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:49,910 INFO L82 GeneralOperation]: Start isEquivalent. First operand 124 states. Second operand 124 states. [2020-07-28 21:36:49,910 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 124 states. [2020-07-28 21:36:49,910 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 124 states. [2020-07-28 21:36:49,921 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,921 INFO L93 Difference]: Finished difference Result 124 states and 303 transitions. [2020-07-28 21:36:49,922 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 303 transitions. [2020-07-28 21:36:49,922 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:49,922 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:49,923 INFO L74 IsIncluded]: Start isIncluded. First operand 124 states. Second operand 124 states. [2020-07-28 21:36:49,923 INFO L87 Difference]: Start difference. First operand 124 states. Second operand 124 states. [2020-07-28 21:36:49,932 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:49,932 INFO L93 Difference]: Finished difference Result 124 states and 303 transitions. [2020-07-28 21:36:49,933 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 303 transitions. [2020-07-28 21:36:49,933 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:49,934 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:49,934 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:49,934 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:49,934 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 124 states. [2020-07-28 21:36:49,942 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 124 states to 124 states and 303 transitions. [2020-07-28 21:36:49,943 INFO L78 Accepts]: Start accepts. Automaton has 124 states and 303 transitions. Word has length 10 [2020-07-28 21:36:49,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:49,943 INFO L479 AbstractCegarLoop]: Abstraction has 124 states and 303 transitions. [2020-07-28 21:36:49,944 INFO L480 AbstractCegarLoop]: Interpolant automaton has 3 states. [2020-07-28 21:36:49,944 INFO L276 IsEmpty]: Start isEmpty. Operand 124 states and 303 transitions. [2020-07-28 21:36:49,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 12 [2020-07-28 21:36:49,945 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:49,945 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:49,945 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2020-07-28 21:36:49,946 INFO L427 AbstractCegarLoop]: === Iteration 4 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:49,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:49,946 INFO L82 PathProgramCache]: Analyzing trace with hash 1215717328, now seen corresponding path program 1 times [2020-07-28 21:36:49,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:49,947 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [290760322] [2020-07-28 21:36:49,947 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:49,994 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:50,059 INFO L280 TraceCheckUtils]: 0: Hoare triple {2770#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {2772#(= 0 ~y~0)} is VALID [2020-07-28 21:36:50,060 INFO L280 TraceCheckUtils]: 1: Hoare triple {2772#(= 0 ~y~0)} [162] L765-->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] {2772#(= 0 ~y~0)} is VALID [2020-07-28 21:36:50,061 INFO L280 TraceCheckUtils]: 2: Hoare triple {2772#(= 0 ~y~0)} [183] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~y~0_10 v_~__unbuffered_p0_EAX~0_11)) 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_10} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_11, 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_10, 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] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,061 INFO L280 TraceCheckUtils]: 3: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,062 INFO L280 TraceCheckUtils]: 4: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [164] L767-->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] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,063 INFO L280 TraceCheckUtils]: 5: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,063 INFO L280 TraceCheckUtils]: 6: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [166] L769-->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] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,064 INFO L280 TraceCheckUtils]: 7: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} 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] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,065 INFO L280 TraceCheckUtils]: 8: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [189] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,066 INFO L280 TraceCheckUtils]: 9: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [179] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_9 v_~x~0_7) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} 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_9, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {2773#(= 0 ~__unbuffered_p0_EAX~0)} is VALID [2020-07-28 21:36:50,067 INFO L280 TraceCheckUtils]: 10: Hoare triple {2773#(= 0 ~__unbuffered_p0_EAX~0)} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {2771#false} is VALID [2020-07-28 21:36:50,067 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 21:36:50,068 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [290760322] [2020-07-28 21:36:50,068 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:50,068 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:36:50,069 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2079662028] [2020-07-28 21:36:50,069 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:36:50,069 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:50,069 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:36:50,083 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 21:36:50,084 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:36:50,084 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:50,084 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:36:50,085 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:36:50,085 INFO L87 Difference]: Start difference. First operand 124 states and 303 transitions. Second operand 4 states. [2020-07-28 21:36:50,144 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,144 INFO L93 Difference]: Finished difference Result 142 states and 336 transitions. [2020-07-28 21:36:50,144 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:36:50,144 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 11 [2020-07-28 21:36:50,145 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:50,145 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-07-28 21:36:50,146 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:50,146 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 28 transitions. [2020-07-28 21:36:50,146 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 28 transitions. [2020-07-28 21:36:50,179 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 28 edges. 28 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:50,181 INFO L225 Difference]: With dead ends: 142 [2020-07-28 21:36:50,181 INFO L226 Difference]: Without dead ends: 64 [2020-07-28 21:36:50,181 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 21:36:50,182 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 64 states. [2020-07-28 21:36:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,184 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,185 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,186 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,187 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,188 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,189 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,190 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,191 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,192 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,193 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,194 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,195 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,196 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 64 to 64. [2020-07-28 21:36:50,197 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:50,197 INFO L82 GeneralOperation]: Start isEquivalent. First operand 64 states. Second operand 64 states. [2020-07-28 21:36:50,197 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 64 states. [2020-07-28 21:36:50,197 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 64 states. [2020-07-28 21:36:50,200 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,200 INFO L93 Difference]: Finished difference Result 64 states and 137 transitions. [2020-07-28 21:36:50,200 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-07-28 21:36:50,200 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:50,201 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:50,201 INFO L74 IsIncluded]: Start isIncluded. First operand 64 states. Second operand 64 states. [2020-07-28 21:36:50,201 INFO L87 Difference]: Start difference. First operand 64 states. Second operand 64 states. [2020-07-28 21:36:50,203 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,204 INFO L93 Difference]: Finished difference Result 64 states and 137 transitions. [2020-07-28 21:36:50,204 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-07-28 21:36:50,204 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:50,204 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:50,204 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:50,205 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:50,205 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 64 states. [2020-07-28 21:36:50,207 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 64 states to 64 states and 137 transitions. [2020-07-28 21:36:50,207 INFO L78 Accepts]: Start accepts. Automaton has 64 states and 137 transitions. Word has length 11 [2020-07-28 21:36:50,208 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:50,208 INFO L479 AbstractCegarLoop]: Abstraction has 64 states and 137 transitions. [2020-07-28 21:36:50,208 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:36:50,208 INFO L276 IsEmpty]: Start isEmpty. Operand 64 states and 137 transitions. [2020-07-28 21:36:50,208 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 13 [2020-07-28 21:36:50,208 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:50,208 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:50,209 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2020-07-28 21:36:50,209 INFO L427 AbstractCegarLoop]: === Iteration 5 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:50,209 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:50,209 INFO L82 PathProgramCache]: Analyzing trace with hash 500064419, now seen corresponding path program 1 times [2020-07-28 21:36:50,209 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:50,210 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1055469581] [2020-07-28 21:36:50,210 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:50,233 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:50,281 INFO L280 TraceCheckUtils]: 0: Hoare triple {3176#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {3178#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,282 INFO L280 TraceCheckUtils]: 1: Hoare triple {3178#(= 0 ~__unbuffered_cnt~0)} [162] L765-->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] {3178#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,283 INFO L280 TraceCheckUtils]: 2: Hoare triple {3178#(= 0 ~__unbuffered_cnt~0)} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {3178#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,283 INFO L280 TraceCheckUtils]: 3: Hoare triple {3178#(= 0 ~__unbuffered_cnt~0)} [164] L767-->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] {3178#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,284 INFO L280 TraceCheckUtils]: 4: Hoare triple {3178#(= 0 ~__unbuffered_cnt~0)} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {3178#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,285 INFO L280 TraceCheckUtils]: 5: Hoare triple {3178#(= 0 ~__unbuffered_cnt~0)} [166] L769-->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] {3178#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,286 INFO L280 TraceCheckUtils]: 6: Hoare triple {3178#(= 0 ~__unbuffered_cnt~0)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,286 INFO L280 TraceCheckUtils]: 7: Hoare triple {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [189] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,287 INFO L280 TraceCheckUtils]: 8: Hoare triple {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [179] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_9 v_~x~0_7) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} 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_9, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,288 INFO L280 TraceCheckUtils]: 9: Hoare triple {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [157] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,289 INFO L280 TraceCheckUtils]: 10: Hoare triple {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [183] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~y~0_10 v_~__unbuffered_p0_EAX~0_11)) 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_10} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_11, 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_10, 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] {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,290 INFO L280 TraceCheckUtils]: 11: Hoare triple {3179#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3177#false} is VALID [2020-07-28 21:36:50,291 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 21:36:50,291 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1055469581] [2020-07-28 21:36:50,291 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:50,292 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2] imperfect sequences [] total 2 [2020-07-28 21:36:50,292 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [92702745] [2020-07-28 21:36:50,292 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:36:50,292 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:50,292 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:36:50,312 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 21:36:50,312 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:36:50,312 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:50,313 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:36:50,313 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:36:50,313 INFO L87 Difference]: Start difference. First operand 64 states and 137 transitions. Second operand 4 states. [2020-07-28 21:36:50,430 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,430 INFO L93 Difference]: Finished difference Result 77 states and 150 transitions. [2020-07-28 21:36:50,430 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2020-07-28 21:36:50,430 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 12 [2020-07-28 21:36:50,430 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:50,431 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:50,431 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:36:50,432 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:50,433 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 5 states to 5 states and 43 transitions. [2020-07-28 21:36:50,433 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states and 43 transitions. [2020-07-28 21:36:50,488 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 43 edges. 43 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:50,489 INFO L225 Difference]: With dead ends: 77 [2020-07-28 21:36:50,489 INFO L226 Difference]: Without dead ends: 56 [2020-07-28 21:36:50,490 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 21:36:50,491 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 56 states. [2020-07-28 21:36:50,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,492 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,493 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,494 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,495 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,496 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,497 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,498 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,499 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,500 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,501 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,502 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,503 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,503 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 56 to 56. [2020-07-28 21:36:50,503 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:50,503 INFO L82 GeneralOperation]: Start isEquivalent. First operand 56 states. Second operand 56 states. [2020-07-28 21:36:50,503 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 56 states. [2020-07-28 21:36:50,504 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 56 states. [2020-07-28 21:36:50,506 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,506 INFO L93 Difference]: Finished difference Result 56 states and 109 transitions. [2020-07-28 21:36:50,506 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions. [2020-07-28 21:36:50,507 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:50,507 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:50,507 INFO L74 IsIncluded]: Start isIncluded. First operand 56 states. Second operand 56 states. [2020-07-28 21:36:50,507 INFO L87 Difference]: Start difference. First operand 56 states. Second operand 56 states. [2020-07-28 21:36:50,510 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,510 INFO L93 Difference]: Finished difference Result 56 states and 109 transitions. [2020-07-28 21:36:50,510 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions. [2020-07-28 21:36:50,511 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:50,511 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:50,511 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:50,511 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:50,511 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 56 states. [2020-07-28 21:36:50,513 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 56 states to 56 states and 109 transitions. [2020-07-28 21:36:50,514 INFO L78 Accepts]: Start accepts. Automaton has 56 states and 109 transitions. Word has length 12 [2020-07-28 21:36:50,514 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:50,514 INFO L479 AbstractCegarLoop]: Abstraction has 56 states and 109 transitions. [2020-07-28 21:36:50,514 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:36:50,514 INFO L276 IsEmpty]: Start isEmpty. Operand 56 states and 109 transitions. [2020-07-28 21:36:50,515 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 14 [2020-07-28 21:36:50,515 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:50,515 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:50,515 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2020-07-28 21:36:50,515 INFO L427 AbstractCegarLoop]: === Iteration 6 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:50,516 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:50,516 INFO L82 PathProgramCache]: Analyzing trace with hash -1337478729, now seen corresponding path program 1 times [2020-07-28 21:36:50,516 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:50,516 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1249317908] [2020-07-28 21:36:50,517 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:50,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:50,591 INFO L280 TraceCheckUtils]: 0: Hoare triple {3485#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,592 INFO L280 TraceCheckUtils]: 1: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [162] L765-->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] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,596 INFO L280 TraceCheckUtils]: 2: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,601 INFO L280 TraceCheckUtils]: 3: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [164] L767-->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] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,602 INFO L280 TraceCheckUtils]: 4: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,603 INFO L280 TraceCheckUtils]: 5: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [166] L769-->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] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,604 INFO L280 TraceCheckUtils]: 6: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [189] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,605 INFO L280 TraceCheckUtils]: 7: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [179] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_9 v_~x~0_7) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} 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_9, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3487#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,606 INFO L280 TraceCheckUtils]: 8: Hoare triple {3487#(= 0 ~__unbuffered_cnt~0)} [204] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_13|) (= (+ v_~__unbuffered_cnt~0_63 1) v_~__unbuffered_cnt~0_62) (= |v_P1Thread1of1ForFork1_#res.offset_13| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_13|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3488#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:36:50,607 INFO L280 TraceCheckUtils]: 9: Hoare triple {3488#(<= ~__unbuffered_cnt~0 1)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} 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] {3489#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,608 INFO L280 TraceCheckUtils]: 10: Hoare triple {3489#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [157] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3489#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,609 INFO L280 TraceCheckUtils]: 11: Hoare triple {3489#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [183] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~y~0_10 v_~__unbuffered_p0_EAX~0_11)) 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_10} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_11, 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_10, 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] {3489#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,611 INFO L280 TraceCheckUtils]: 12: Hoare triple {3489#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3486#false} is VALID [2020-07-28 21:36:50,612 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 21:36:50,612 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1249317908] [2020-07-28 21:36:50,613 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:50,613 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:36:50,613 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1376232493] [2020-07-28 21:36:50,614 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:36:50,614 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:50,614 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 5 states. [2020-07-28 21:36:50,633 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 21:36:50,633 INFO L459 AbstractCegarLoop]: Interpolant automaton has 5 states [2020-07-28 21:36:50,633 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:50,634 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2020-07-28 21:36:50,634 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=8, Invalid=12, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:36:50,634 INFO L87 Difference]: Start difference. First operand 56 states and 109 transitions. Second operand 5 states. [2020-07-28 21:36:50,762 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,762 INFO L93 Difference]: Finished difference Result 57 states and 99 transitions. [2020-07-28 21:36:50,762 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2020-07-28 21:36:50,762 INFO L78 Accepts]: Start accepts. Automaton has 5 states. Word has length 13 [2020-07-28 21:36:50,763 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:50,763 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:36:50,764 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 45 transitions. [2020-07-28 21:36:50,764 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 5 states. [2020-07-28 21:36:50,765 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 6 states to 6 states and 45 transitions. [2020-07-28 21:36:50,766 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states and 45 transitions. [2020-07-28 21:36:50,824 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 45 edges. 45 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:50,825 INFO L225 Difference]: With dead ends: 57 [2020-07-28 21:36:50,826 INFO L226 Difference]: Without dead ends: 42 [2020-07-28 21:36:50,826 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 4 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 1 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:36:50,827 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 42 states. [2020-07-28 21:36:50,828 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,829 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,830 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,831 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,832 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,833 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,834 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,835 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,836 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,837 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,838 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,839 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,840 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,841 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,842 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:50,842 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 42 to 42. [2020-07-28 21:36:50,842 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:50,842 INFO L82 GeneralOperation]: Start isEquivalent. First operand 42 states. Second operand 42 states. [2020-07-28 21:36:50,843 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 21:36:50,843 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 21:36:50,845 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,845 INFO L93 Difference]: Finished difference Result 42 states and 69 transitions. [2020-07-28 21:36:50,846 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2020-07-28 21:36:50,846 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:50,846 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:50,847 INFO L74 IsIncluded]: Start isIncluded. First operand 42 states. Second operand 42 states. [2020-07-28 21:36:50,847 INFO L87 Difference]: Start difference. First operand 42 states. Second operand 42 states. [2020-07-28 21:36:50,849 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:50,849 INFO L93 Difference]: Finished difference Result 42 states and 69 transitions. [2020-07-28 21:36:50,849 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2020-07-28 21:36:50,850 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:50,850 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:50,850 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:50,850 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:50,850 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 42 states. [2020-07-28 21:36:50,852 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 42 states to 42 states and 69 transitions. [2020-07-28 21:36:50,852 INFO L78 Accepts]: Start accepts. Automaton has 42 states and 69 transitions. Word has length 13 [2020-07-28 21:36:50,853 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:50,853 INFO L479 AbstractCegarLoop]: Abstraction has 42 states and 69 transitions. [2020-07-28 21:36:50,853 INFO L480 AbstractCegarLoop]: Interpolant automaton has 5 states. [2020-07-28 21:36:50,853 INFO L276 IsEmpty]: Start isEmpty. Operand 42 states and 69 transitions. [2020-07-28 21:36:50,854 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 15 [2020-07-28 21:36:50,854 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:50,854 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:50,854 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5 [2020-07-28 21:36:50,855 INFO L427 AbstractCegarLoop]: === Iteration 7 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:50,855 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:50,855 INFO L82 PathProgramCache]: Analyzing trace with hash 1451530590, now seen corresponding path program 1 times [2020-07-28 21:36:50,856 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:50,856 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [48043889] [2020-07-28 21:36:50,856 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:50,876 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:50,938 INFO L280 TraceCheckUtils]: 0: Hoare triple {3719#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,940 INFO L280 TraceCheckUtils]: 1: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [162] L765-->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] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,941 INFO L280 TraceCheckUtils]: 2: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,943 INFO L280 TraceCheckUtils]: 3: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [164] L767-->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] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,945 INFO L280 TraceCheckUtils]: 4: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,946 INFO L280 TraceCheckUtils]: 5: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [166] L769-->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] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,964 INFO L280 TraceCheckUtils]: 6: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [189] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,966 INFO L280 TraceCheckUtils]: 7: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [179] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_9 v_~x~0_7) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} 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_9, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3721#(= 0 ~__unbuffered_cnt~0)} is VALID [2020-07-28 21:36:50,967 INFO L280 TraceCheckUtils]: 8: Hoare triple {3721#(= 0 ~__unbuffered_cnt~0)} [204] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_13|) (= (+ v_~__unbuffered_cnt~0_63 1) v_~__unbuffered_cnt~0_62) (= |v_P1Thread1of1ForFork1_#res.offset_13| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_13|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3722#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:36:50,968 INFO L280 TraceCheckUtils]: 9: Hoare triple {3722#(<= ~__unbuffered_cnt~0 1)} [157] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3722#(<= ~__unbuffered_cnt~0 1)} is VALID [2020-07-28 21:36:50,970 INFO L280 TraceCheckUtils]: 10: Hoare triple {3722#(<= ~__unbuffered_cnt~0 1)} [209] L745-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_82 1) v_~__unbuffered_cnt~0_81)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_82} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_81, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3723#(<= ~__unbuffered_cnt~0 2)} is VALID [2020-07-28 21:36:50,972 INFO L280 TraceCheckUtils]: 11: Hoare triple {3723#(<= ~__unbuffered_cnt~0 2)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3724#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,973 INFO L280 TraceCheckUtils]: 12: Hoare triple {3724#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [183] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~y~0_10 v_~__unbuffered_p0_EAX~0_11)) 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_10} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_11, 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_10, 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] {3724#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} is VALID [2020-07-28 21:36:50,976 INFO L280 TraceCheckUtils]: 13: Hoare triple {3724#(and (<= |ULTIMATE.start_assume_abort_if_not_#in~cond| 0) (<= 0 |ULTIMATE.start_assume_abort_if_not_#in~cond|))} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3720#false} is VALID [2020-07-28 21:36:50,977 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 21:36:50,977 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [48043889] [2020-07-28 21:36:50,978 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:50,978 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4] imperfect sequences [] total 4 [2020-07-28 21:36:50,978 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [180338496] [2020-07-28 21:36:50,978 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:36:50,979 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:50,979 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 6 states. [2020-07-28 21:36:50,995 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 14 edges. 14 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:50,995 INFO L459 AbstractCegarLoop]: Interpolant automaton has 6 states [2020-07-28 21:36:50,995 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:50,995 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2020-07-28 21:36:50,996 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=12, Invalid=18, Unknown=0, NotChecked=0, Total=30 [2020-07-28 21:36:50,996 INFO L87 Difference]: Start difference. First operand 42 states and 69 transitions. Second operand 6 states. [2020-07-28 21:36:51,142 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:51,142 INFO L93 Difference]: Finished difference Result 39 states and 61 transitions. [2020-07-28 21:36:51,142 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 7 states. [2020-07-28 21:36:51,142 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 14 [2020-07-28 21:36:51,142 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:51,142 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:36:51,143 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2020-07-28 21:36:51,143 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 6 states. [2020-07-28 21:36:51,144 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 7 states to 7 states and 38 transitions. [2020-07-28 21:36:51,144 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 7 states and 38 transitions. [2020-07-28 21:36:51,200 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 38 edges. 38 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:51,201 INFO L225 Difference]: With dead ends: 39 [2020-07-28 21:36:51,201 INFO L226 Difference]: Without dead ends: 33 [2020-07-28 21:36:51,201 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 5 GetRequests, 0 SyntacticMatches, 0 SemanticMatches, 5 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=16, Invalid=26, Unknown=0, NotChecked=0, Total=42 [2020-07-28 21:36:51,202 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 33 states. [2020-07-28 21:36:51,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,203 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,204 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,205 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,206 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,207 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,208 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,209 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,210 WARN L146 ateFactoryRefinement]: Check not implemented [2020-07-28 21:36:51,210 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 33 to 33. [2020-07-28 21:36:51,210 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:51,210 INFO L82 GeneralOperation]: Start isEquivalent. First operand 33 states. Second operand 33 states. [2020-07-28 21:36:51,210 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 21:36:51,210 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 21:36:51,212 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:51,212 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-07-28 21:36:51,212 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:36:51,213 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:51,213 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:51,213 INFO L74 IsIncluded]: Start isIncluded. First operand 33 states. Second operand 33 states. [2020-07-28 21:36:51,213 INFO L87 Difference]: Start difference. First operand 33 states. Second operand 33 states. [2020-07-28 21:36:51,215 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:51,215 INFO L93 Difference]: Finished difference Result 33 states and 51 transitions. [2020-07-28 21:36:51,215 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:36:51,216 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:51,216 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:51,216 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:51,216 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:51,217 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 33 states. [2020-07-28 21:36:51,218 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 33 states to 33 states and 51 transitions. [2020-07-28 21:36:51,219 INFO L78 Accepts]: Start accepts. Automaton has 33 states and 51 transitions. Word has length 14 [2020-07-28 21:36:51,219 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:51,219 INFO L479 AbstractCegarLoop]: Abstraction has 33 states and 51 transitions. [2020-07-28 21:36:51,219 INFO L480 AbstractCegarLoop]: Interpolant automaton has 6 states. [2020-07-28 21:36:51,219 INFO L276 IsEmpty]: Start isEmpty. Operand 33 states and 51 transitions. [2020-07-28 21:36:51,219 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2020-07-28 21:36:51,220 INFO L414 BasicCegarLoop]: Found error trace [2020-07-28 21:36:51,220 INFO L422 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2020-07-28 21:36:51,220 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6 [2020-07-28 21:36:51,220 INFO L427 AbstractCegarLoop]: === Iteration 8 === [ULTIMATE.startErr2INUSE_VIOLATION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2020-07-28 21:36:51,220 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2020-07-28 21:36:51,221 INFO L82 PathProgramCache]: Analyzing trace with hash -958438309, now seen corresponding path program 1 times [2020-07-28 21:36:51,221 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2020-07-28 21:36:51,221 INFO L354 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1723131883] [2020-07-28 21:36:51,221 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2020-07-28 21:36:51,234 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2020-07-28 21:36:51,272 INFO L280 TraceCheckUtils]: 0: Hoare triple {3900#true} [225] ULTIMATE.startENTRY-->L765: Formula: (let ((.cse0 (store |v_#valid_71| 0 0))) (and (= 0 |v_#NULL.base_2|) (= v_~__unbuffered_p0_EBX~0_48 0) (= |v_#valid_70| (store .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31| 1)) (= 0 v_~x~0_39) (= 0 (select .cse0 |v_ULTIMATE.start_main_~#t2207~0.base_31|)) (= 0 v_~y~0_22) (= |v_#length_23| (store |v_#length_24| |v_ULTIMATE.start_main_~#t2207~0.base_31| 4)) (= 0 v_~__unbuffered_cnt~0_97) (= (store |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31| (store (select |v_#memory_int_20| |v_ULTIMATE.start_main_~#t2207~0.base_31|) |v_ULTIMATE.start_main_~#t2207~0.offset_21| 0)) |v_#memory_int_19|) (= 0 v_~__unbuffered_p0_EAX~0_44) (< 0 |v_#StackHeapBarrier_16|) (= 0 v_~main$tmp_guard0~0_34) (< |v_#StackHeapBarrier_16| |v_ULTIMATE.start_main_~#t2207~0.base_31|) (= 0 |v_#NULL.offset_2|) (= 0 v_~__unbuffered_p2_EAX~0_39) (= 0 |v_ULTIMATE.start_main_~#t2207~0.offset_21|) (= 0 v_~main$tmp_guard1~0_37))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_16|, #valid=|v_#valid_71|, #memory_int=|v_#memory_int_20|, #length=|v_#length_24|} OutVars{~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_48, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_25|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_9|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_8|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_19|, #NULL.offset=|v_#NULL.offset_2|, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_37, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_34, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_25|, #NULL.base=|v_#NULL.base_2|, ULTIMATE.start_main_~#t2207~0.offset=|v_ULTIMATE.start_main_~#t2207~0.offset_21|, #StackHeapBarrier=|v_#StackHeapBarrier_16|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_44, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_24|, ULTIMATE.start_main_#res=|v_ULTIMATE.start_main_#res_23|, #valid=|v_#valid_70|, #memory_int=|v_#memory_int_19|, ULTIMATE.start_main_~#t2207~0.base=|v_ULTIMATE.start_main_~#t2207~0.base_31|, #length=|v_#length_23|, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_39, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_97, ~y~0=v_~y~0_22, ~x~0=v_~x~0_39, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_18|} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0, ULTIMATE.start_main_#t~nondet4, ULTIMATE.start_main_#t~nondet2, ULTIMATE.start_main_#t~nondet3, ULTIMATE.start_main_~#t2209~0.offset, #NULL.offset, ~main$tmp_guard1~0, ~main$tmp_guard0~0, ULTIMATE.start_main_~#t2209~0.base, #NULL.base, ULTIMATE.start_main_~#t2207~0.offset, ~__unbuffered_p0_EAX~0, ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#res, #valid, #memory_int, ULTIMATE.start_main_~#t2207~0.base, #length, ~__unbuffered_p2_EAX~0, ~__unbuffered_cnt~0, ~y~0, ~x~0, ULTIMATE.start_main_~#t2208~0.offset] {3900#true} is VALID [2020-07-28 21:36:51,272 INFO L280 TraceCheckUtils]: 1: Hoare triple {3900#true} [162] L765-->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] {3900#true} is VALID [2020-07-28 21:36:51,273 INFO L280 TraceCheckUtils]: 2: Hoare triple {3900#true} [201] L765-1-->L767: Formula: (and (not (= 0 |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= |v_#valid_31| (store |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11| 1)) (= |v_#memory_int_13| (store |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11| (store (select |v_#memory_int_14| |v_ULTIMATE.start_main_~#t2208~0.base_11|) |v_ULTIMATE.start_main_~#t2208~0.offset_10| 1))) (= (store |v_#length_18| |v_ULTIMATE.start_main_~#t2208~0.base_11| 4) |v_#length_17|) (< |v_#StackHeapBarrier_11| |v_ULTIMATE.start_main_~#t2208~0.base_11|) (= 0 (select |v_#valid_32| |v_ULTIMATE.start_main_~#t2208~0.base_11|)) (= 0 |v_ULTIMATE.start_main_~#t2208~0.offset_10|)) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_11|, #valid=|v_#valid_32|, #memory_int=|v_#memory_int_14|, #length=|v_#length_18|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_11|, ULTIMATE.start_main_~#t2208~0.base=|v_ULTIMATE.start_main_~#t2208~0.base_11|, ULTIMATE.start_main_#t~nondet2=|v_ULTIMATE.start_main_#t~nondet2_6|, #valid=|v_#valid_31|, #memory_int=|v_#memory_int_13|, #length=|v_#length_17|, ULTIMATE.start_main_~#t2208~0.offset=|v_ULTIMATE.start_main_~#t2208~0.offset_10|} AuxVars[] AssignedVars[ULTIMATE.start_main_~#t2208~0.base, ULTIMATE.start_main_#t~nondet2, #valid, #memory_int, #length, ULTIMATE.start_main_~#t2208~0.offset] {3900#true} is VALID [2020-07-28 21:36:51,273 INFO L280 TraceCheckUtils]: 3: Hoare triple {3900#true} [164] L767-->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] {3900#true} is VALID [2020-07-28 21:36:51,273 INFO L280 TraceCheckUtils]: 4: Hoare triple {3900#true} [199] L767-1-->L769: Formula: (and (< |v_#StackHeapBarrier_10| |v_ULTIMATE.start_main_~#t2209~0.base_10|) (= |v_#memory_int_11| (store |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10| (store (select |v_#memory_int_12| |v_ULTIMATE.start_main_~#t2209~0.base_10|) |v_ULTIMATE.start_main_~#t2209~0.offset_10| 2))) (= 0 (select |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10|)) (= (store |v_#valid_30| |v_ULTIMATE.start_main_~#t2209~0.base_10| 1) |v_#valid_29|) (= |v_#length_15| (store |v_#length_16| |v_ULTIMATE.start_main_~#t2209~0.base_10| 4)) (= 0 |v_ULTIMATE.start_main_~#t2209~0.offset_10|) (not (= 0 |v_ULTIMATE.start_main_~#t2209~0.base_10|))) InVars {#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_30|, #memory_int=|v_#memory_int_12|, #length=|v_#length_16|} OutVars{#StackHeapBarrier=|v_#StackHeapBarrier_10|, #valid=|v_#valid_29|, ULTIMATE.start_main_#t~nondet3=|v_ULTIMATE.start_main_#t~nondet3_5|, #memory_int=|v_#memory_int_11|, ULTIMATE.start_main_~#t2209~0.offset=|v_ULTIMATE.start_main_~#t2209~0.offset_10|, #length=|v_#length_15|, ULTIMATE.start_main_~#t2209~0.base=|v_ULTIMATE.start_main_~#t2209~0.base_10|} AuxVars[] AssignedVars[#valid, ULTIMATE.start_main_#t~nondet3, #memory_int, ULTIMATE.start_main_~#t2209~0.offset, #length, ULTIMATE.start_main_~#t2209~0.base] {3900#true} is VALID [2020-07-28 21:36:51,274 INFO L280 TraceCheckUtils]: 5: Hoare triple {3900#true} [166] L769-->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] {3900#true} is VALID [2020-07-28 21:36:51,274 INFO L280 TraceCheckUtils]: 6: Hoare triple {3900#true} [189] P1ENTRY-->L730: Formula: (and (= 1 v_~x~0_12) (= |v_P1Thread1of1ForFork1_#in~arg.offset_4| v_P1Thread1of1ForFork1_~arg.offset_4) (= v_P1Thread1of1ForFork1_~arg.base_4 |v_P1Thread1of1ForFork1_#in~arg.base_4|)) InVars {P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|} OutVars{P1Thread1of1ForFork1_~arg.offset=v_P1Thread1of1ForFork1_~arg.offset_4, P1Thread1of1ForFork1_~arg.base=v_P1Thread1of1ForFork1_~arg.base_4, P1Thread1of1ForFork1_#in~arg.base=|v_P1Thread1of1ForFork1_#in~arg.base_4|, P1Thread1of1ForFork1_#in~arg.offset=|v_P1Thread1of1ForFork1_#in~arg.offset_4|, ~x~0=v_~x~0_12} AuxVars[] AssignedVars[P1Thread1of1ForFork1_~arg.offset, P1Thread1of1ForFork1_~arg.base, ~x~0] {3902#(= 1 ~x~0)} is VALID [2020-07-28 21:36:51,275 INFO L280 TraceCheckUtils]: 7: Hoare triple {3902#(= 1 ~x~0)} [179] P2ENTRY-->L742: Formula: (and (= v_~__unbuffered_p2_EAX~0_9 v_~x~0_7) (= v_P2Thread1of1ForFork2_~arg.base_4 |v_P2Thread1of1ForFork2_#in~arg.base_4|) (= |v_P2Thread1of1ForFork2_#in~arg.offset_4| v_P2Thread1of1ForFork2_~arg.offset_4)) InVars {P2Thread1of1ForFork2_#in~arg.offset=|v_P2Thread1of1ForFork2_#in~arg.offset_4|, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} 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_9, P2Thread1of1ForFork2_#in~arg.base=|v_P2Thread1of1ForFork2_#in~arg.base_4|, ~x~0=v_~x~0_7} AuxVars[] AssignedVars[P2Thread1of1ForFork2_~arg.base, P2Thread1of1ForFork2_~arg.offset, ~__unbuffered_p2_EAX~0] {3902#(= 1 ~x~0)} is VALID [2020-07-28 21:36:51,276 INFO L280 TraceCheckUtils]: 8: Hoare triple {3902#(= 1 ~x~0)} [204] L730-->P1EXIT: Formula: (and (= 0 |v_P1Thread1of1ForFork1_#res.base_13|) (= (+ v_~__unbuffered_cnt~0_63 1) v_~__unbuffered_cnt~0_62) (= |v_P1Thread1of1ForFork1_#res.offset_13| 0)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_63} OutVars{P1Thread1of1ForFork1_#res.offset=|v_P1Thread1of1ForFork1_#res.offset_13|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_62, P1Thread1of1ForFork1_#res.base=|v_P1Thread1of1ForFork1_#res.base_13|} AuxVars[] AssignedVars[P1Thread1of1ForFork1_#res.offset, ~__unbuffered_cnt~0, P1Thread1of1ForFork1_#res.base] {3902#(= 1 ~x~0)} is VALID [2020-07-28 21:36:51,276 INFO L280 TraceCheckUtils]: 9: Hoare triple {3902#(= 1 ~x~0)} [157] L742-->L745: Formula: (= v_~y~0_2 1) InVars {} OutVars{~y~0=v_~y~0_2} AuxVars[] AssignedVars[~y~0] {3902#(= 1 ~x~0)} is VALID [2020-07-28 21:36:51,277 INFO L280 TraceCheckUtils]: 10: Hoare triple {3902#(= 1 ~x~0)} [209] L745-->P2EXIT: Formula: (and (= |v_P2Thread1of1ForFork2_#res.offset_5| 0) (= 0 |v_P2Thread1of1ForFork2_#res.base_5|) (= (+ v_~__unbuffered_cnt~0_82 1) v_~__unbuffered_cnt~0_81)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_82} OutVars{P2Thread1of1ForFork2_#res.base=|v_P2Thread1of1ForFork2_#res.base_5|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_81, P2Thread1of1ForFork2_#res.offset=|v_P2Thread1of1ForFork2_#res.offset_5|} AuxVars[] AssignedVars[P2Thread1of1ForFork2_#res.base, ~__unbuffered_cnt~0, P2Thread1of1ForFork2_#res.offset] {3902#(= 1 ~x~0)} is VALID [2020-07-28 21:36:51,278 INFO L280 TraceCheckUtils]: 11: Hoare triple {3902#(= 1 ~x~0)} [183] P0ENTRY-->L715: Formula: (and (= v_P0Thread1of1ForFork0_~arg.offset_4 |v_P0Thread1of1ForFork0_#in~arg.offset_4|) (= v_P0Thread1of1ForFork0_~arg.base_4 |v_P0Thread1of1ForFork0_#in~arg.base_4|) (= v_~y~0_10 v_~__unbuffered_p0_EAX~0_11)) 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_10} OutVars{~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_11, 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_10, 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] {3902#(= 1 ~x~0)} is VALID [2020-07-28 21:36:51,279 INFO L280 TraceCheckUtils]: 12: Hoare triple {3902#(= 1 ~x~0)} [146] L715-->L718: Formula: (= v_~__unbuffered_p0_EBX~0_1 v_~x~0_1) InVars {~x~0=v_~x~0_1} OutVars{~x~0=v_~x~0_1, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_1} AuxVars[] AssignedVars[~__unbuffered_p0_EBX~0] {3903#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:36:51,279 INFO L280 TraceCheckUtils]: 13: Hoare triple {3903#(= 1 ~__unbuffered_p0_EBX~0)} [205] L718-->P0EXIT: Formula: (and (= 0 |v_P0Thread1of1ForFork0_#res.base_11|) (= 0 |v_P0Thread1of1ForFork0_#res.offset_11|) (= (+ v_~__unbuffered_cnt~0_69 1) v_~__unbuffered_cnt~0_68)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_69} OutVars{P0Thread1of1ForFork0_#res.offset=|v_P0Thread1of1ForFork0_#res.offset_11|, P0Thread1of1ForFork0_#res.base=|v_P0Thread1of1ForFork0_#res.base_11|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_68} AuxVars[] AssignedVars[P0Thread1of1ForFork0_#res.offset, P0Thread1of1ForFork0_#res.base, ~__unbuffered_cnt~0] {3903#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:36:51,280 INFO L280 TraceCheckUtils]: 14: Hoare triple {3903#(= 1 ~__unbuffered_p0_EBX~0)} [198] L769-1-->L2: Formula: (and (let ((.cse0 (= 3 v_~__unbuffered_cnt~0_45))) (or (and (= 0 v_~main$tmp_guard0~0_19) (not .cse0)) (and (= 1 v_~main$tmp_guard0~0_19) .cse0))) (= (mod v_~main$tmp_guard0~0_19 256) |v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|)) InVars {~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_6|, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_8, ULTIMATE.start_main_#t~nondet4=|v_ULTIMATE.start_main_#t~nondet4_10|, ~__unbuffered_cnt~0=v_~__unbuffered_cnt~0_45, ~main$tmp_guard0~0=v_~main$tmp_guard0~0_19} AuxVars[] AssignedVars[ULTIMATE.start_assume_abort_if_not_#in~cond, ULTIMATE.start_assume_abort_if_not_~cond, ULTIMATE.start_main_#t~nondet4, ~main$tmp_guard0~0] {3903#(= 1 ~__unbuffered_p0_EBX~0)} is VALID [2020-07-28 21:36:51,282 INFO L280 TraceCheckUtils]: 15: Hoare triple {3903#(= 1 ~__unbuffered_p0_EBX~0)} [221] L2-->ULTIMATE.startErr0ASSERT_VIOLATIONERROR_FUNCTION: Formula: (and (= 1 v_~__unbuffered_p0_EAX~0_37) (not (= 0 v_ULTIMATE.start_assume_abort_if_not_~cond_28)) (= v_ULTIMATE.start_assume_abort_if_not_~cond_28 |v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|) (= 1 v_~__unbuffered_p2_EAX~0_32) (= v_~__unbuffered_p0_EBX~0_39 0) (= v_ULTIMATE.start___VERIFIER_assert_~expression_16 |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|) (= 0 v_~main$tmp_guard1~0_29) (= |v_ULTIMATE.start___VERIFIER_assert_#in~expression_15| (mod v_~main$tmp_guard1~0_29 256))) InVars {ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32} OutVars{ULTIMATE.start_assume_abort_if_not_#in~cond=|v_ULTIMATE.start_assume_abort_if_not_#in~cond_26|, ~__unbuffered_p0_EAX~0=v_~__unbuffered_p0_EAX~0_37, ULTIMATE.start___VERIFIER_assert_~expression=v_ULTIMATE.start___VERIFIER_assert_~expression_16, ~__unbuffered_p0_EBX~0=v_~__unbuffered_p0_EBX~0_39, ULTIMATE.start_assume_abort_if_not_~cond=v_ULTIMATE.start_assume_abort_if_not_~cond_28, ~main$tmp_guard1~0=v_~main$tmp_guard1~0_29, ~__unbuffered_p2_EAX~0=v_~__unbuffered_p2_EAX~0_32, ULTIMATE.start___VERIFIER_assert_#in~expression=|v_ULTIMATE.start___VERIFIER_assert_#in~expression_15|} AuxVars[] AssignedVars[ULTIMATE.start___VERIFIER_assert_~expression, ULTIMATE.start_assume_abort_if_not_~cond, ~main$tmp_guard1~0, ULTIMATE.start___VERIFIER_assert_#in~expression] {3901#false} is VALID [2020-07-28 21:36:51,283 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 21:36:51,283 INFO L354 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1723131883] [2020-07-28 21:36:51,283 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2020-07-28 21:36:51,283 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2020-07-28 21:36:51,283 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [375496577] [2020-07-28 21:36:51,284 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:36:51,284 INFO L84 Accepts]: Finished accepts. word is accepted. [2020-07-28 21:36:51,284 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states. [2020-07-28 21:36:51,303 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 16 edges. 16 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:51,303 INFO L459 AbstractCegarLoop]: Interpolant automaton has 4 states [2020-07-28 21:36:51,303 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2020-07-28 21:36:51,304 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2020-07-28 21:36:51,304 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2020-07-28 21:36:51,304 INFO L87 Difference]: Start difference. First operand 33 states and 51 transitions. Second operand 4 states. [2020-07-28 21:36:51,353 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:51,353 INFO L93 Difference]: Finished difference Result 32 states and 50 transitions. [2020-07-28 21:36:51,353 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 4 states. [2020-07-28 21:36:51,353 INFO L78 Accepts]: Start accepts. Automaton has 4 states. Word has length 16 [2020-07-28 21:36:51,354 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2020-07-28 21:36:51,354 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:51,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:36:51,358 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4 states. [2020-07-28 21:36:51,359 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4 states to 4 states and 20 transitions. [2020-07-28 21:36:51,359 INFO L86 InductivityCheck]: Starting indutivity check of a Floyd-Hoare automaton with 4 states and 20 transitions. [2020-07-28 21:36:51,395 INFO L119 InductivityCheck]: Floyd-Hoare automaton has 20 edges. 20 inductive. 0 not inductive. 0 times theorem prover too weak to decide inductivity. [2020-07-28 21:36:51,395 INFO L225 Difference]: With dead ends: 32 [2020-07-28 21:36:51,395 INFO L226 Difference]: Without dead ends: 0 [2020-07-28 21:36:51,396 INFO L675 BasicCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2020-07-28 21:36:51,396 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2020-07-28 21:36:51,397 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2020-07-28 21:36:51,397 INFO L214 AbstractMinimizeNwa]: Start testing correctness of minimizeSevpa [2020-07-28 21:36:51,397 INFO L82 GeneralOperation]: Start isEquivalent. First operand 0 states. Second operand 0 states. [2020-07-28 21:36:51,397 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:36:51,397 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:36:51,398 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:51,398 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:36:51,398 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:36:51,398 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:51,398 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:51,398 INFO L74 IsIncluded]: Start isIncluded. First operand 0 states. Second operand 0 states. [2020-07-28 21:36:51,398 INFO L87 Difference]: Start difference. First operand 0 states. Second operand 0 states. [2020-07-28 21:36:51,399 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2020-07-28 21:36:51,399 INFO L93 Difference]: Finished difference Result 0 states and 0 transitions. [2020-07-28 21:36:51,399 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:36:51,399 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:51,399 INFO L83 IsIncluded]: Finished isIncluded. Language is included [2020-07-28 21:36:51,399 INFO L88 GeneralOperation]: Finished isEquivalent. [2020-07-28 21:36:51,399 INFO L221 AbstractMinimizeNwa]: Finished testing correctness of minimizeSevpa [2020-07-28 21:36:51,399 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 0 states. [2020-07-28 21:36:51,399 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2020-07-28 21:36:51,400 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 16 [2020-07-28 21:36:51,400 INFO L84 Accepts]: Finished accepts. word is rejected. [2020-07-28 21:36:51,400 INFO L479 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2020-07-28 21:36:51,400 INFO L480 AbstractCegarLoop]: Interpolant automaton has 4 states. [2020-07-28 21:36:51,400 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2020-07-28 21:36:51,400 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2020-07-28 21:36:51,400 WARN L516 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2020-07-28 21:36:51,403 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 28.07 09:36:51 BasicIcfg [2020-07-28 21:36:51,404 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2020-07-28 21:36:51,404 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2020-07-28 21:36:51,404 INFO L271 PluginConnector]: Initializing Witness Printer... [2020-07-28 21:36:51,404 INFO L275 PluginConnector]: Witness Printer initialized [2020-07-28 21:36:51,405 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 28.07 09:36:46" (3/4) ... [2020-07-28 21:36:51,408 INFO L137 WitnessPrinter]: Generating witness for correct program [2020-07-28 21:36:51,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P0 [2020-07-28 21:36:51,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P1 [2020-07-28 21:36:51,413 INFO L354 RCFGBacktranslator]: Ignoring RootEdge to procedure P2 [2020-07-28 21:36:51,419 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 12 nodes and edges [2020-07-28 21:36:51,419 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 3 nodes and edges [2020-07-28 21:36:51,419 INFO L902 BoogieBacktranslator]: Reduced CFG by removing 1 nodes and edges [2020-07-28 21:36:51,459 INFO L141 WitnessManager]: Wrote witness to /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/witness.graphml [2020-07-28 21:36:51,460 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2020-07-28 21:36:51,463 INFO L168 Benchmark]: Toolchain (without parser) took 6650.91 ms. Allocated memory was 1.0 GB in the beginning and 1.3 GB in the end (delta: 307.8 MB). Free memory was 950.8 MB in the beginning and 1.2 GB in the end (delta: -269.5 MB). Peak memory consumption was 38.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:36:51,464 INFO L168 Benchmark]: CDTParser took 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. [2020-07-28 21:36:51,464 INFO L168 Benchmark]: CACSL2BoogieTranslator took 703.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. [2020-07-28 21:36:51,465 INFO L168 Benchmark]: Boogie Procedure Inliner took 55.82 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 21:36:51,465 INFO L168 Benchmark]: Boogie Preprocessor took 35.60 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 21:36:51,466 INFO L168 Benchmark]: RCFGBuilder took 513.66 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: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. [2020-07-28 21:36:51,467 INFO L168 Benchmark]: TraceAbstraction took 5277.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -160.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. [2020-07-28 21:36:51,467 INFO L168 Benchmark]: Witness Printer took 55.99 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. [2020-07-28 21:36:51,471 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 0.32 ms. Allocated memory is still 1.0 GB. Free memory is still 981.7 MB. There was no memory consumed. Max. memory is 11.5 GB. * CACSL2BoogieTranslator took 703.89 ms. Allocated memory was 1.0 GB in the beginning and 1.2 GB in the end (delta: 139.5 MB). Free memory was 950.8 MB in the beginning and 1.1 GB in the end (delta: -156.9 MB). Peak memory consumption was 20.5 MB. Max. memory is 11.5 GB. * Boogie Procedure Inliner took 55.82 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 35.60 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 513.66 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: 31.8 MB). Peak memory consumption was 31.8 MB. Max. memory is 11.5 GB. * TraceAbstraction took 5277.65 ms. Allocated memory was 1.2 GB in the beginning and 1.3 GB in the end (delta: 168.3 MB). Free memory was 1.1 GB in the beginning and 1.2 GB in the end (delta: -160.3 MB). Peak memory consumption was 8.0 MB. Max. memory is 11.5 GB. * Witness Printer took 55.99 ms. Allocated memory is still 1.3 GB. Free memory was 1.2 GB in the beginning and 1.2 GB in the end (delta: 9.3 MB). Peak memory consumption was 9.3 MB. Max. memory is 11.5 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: PetriNetLargeBlockEncoding benchmarks LbeTime: 2.3s, 77 ProgramPointsBefore, 30 ProgramPointsAfterwards, 69 TransitionsBefore, 20 TransitionsAfterwards, 1178 CoEnabledTransitionPairs, 6 FixpointIterations, 14 TrivialSequentialCompositions, 38 ConcurrentSequentialCompositions, 0 TrivialYvCompositions, 6 ConcurrentYvCompositions, 2 ChoiceCompositions, 630 VarBasedMoverChecksPositive, 26 VarBasedMoverChecksNegative, 4 SemBasedMoverChecksPositive, 30 SemBasedMoverChecksNegative, 0 SemBasedMoverChecksUnknown, SemBasedMoverCheckTime: 0.5s, 0 MoverChecksTotal, 1996 CheckedPairsTotal, 58 TotalNumberOfCompositions - PositiveResult [Line: 7]: call of __VERIFIER_error() unreachable For all program executions holds that call of __VERIFIER_error() unreachable at this location - AllSpecificationsHoldResult: All specifications hold 1 specifications checked. All of them hold - StatisticsResult: Ultimate Automizer benchmark data CFG has 4 procedures, 68 locations, 1 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 5.1s, OverallIterations: 8, TraceHistogramMax: 1, AutomataDifference: 1.1s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, InitialAbstractionConstructionTime: 2.3s, HoareTripleCheckerStatistics: 125 SDtfs, 117 SDslu, 138 SDs, 0 SdLazy, 98 SolverSat, 22 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.1s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 24 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 23 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 3 ImplicationChecksByTransitivity, 0.1s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=226occurred in iteration=0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0s DumpTime, AutomataMinimizationStatistics: 0.3s AutomataMinimizationTime, 8 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.1s SatisfiabilityAnalysisTime, 0.6s InterpolantComputationTime, 93 NumberOfCodeBlocks, 93 NumberOfCodeBlocksAsserted, 8 NumberOfCheckSat, 85 ConstructedInterpolants, 0 QuantifiedInterpolants, 3147 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 8 InterpolantComputations, 8 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...