/usr/bin/java -Xmx8000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.3.100.v20150511-1540.jar -data @noDefault -ultimatedata ./data -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf -i ../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i -------------------------------------------------------------------------------- This is Ultimate 0.1.25-fae578e [2019-12-19 05:57:37,454 INFO L177 SettingsManager]: Resetting all preferences to default values... [2019-12-19 05:57:37,457 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2019-12-19 05:57:37,475 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2019-12-19 05:57:37,475 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2019-12-19 05:57:37,476 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2019-12-19 05:57:37,478 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2019-12-19 05:57:37,487 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2019-12-19 05:57:37,492 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2019-12-19 05:57:37,495 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2019-12-19 05:57:37,497 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2019-12-19 05:57:37,499 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2019-12-19 05:57:37,499 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2019-12-19 05:57:37,502 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2019-12-19 05:57:37,504 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2019-12-19 05:57:37,506 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2019-12-19 05:57:37,507 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2019-12-19 05:57:37,508 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2019-12-19 05:57:37,509 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2019-12-19 05:57:37,514 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2019-12-19 05:57:37,519 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2019-12-19 05:57:37,520 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2019-12-19 05:57:37,521 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2019-12-19 05:57:37,522 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2019-12-19 05:57:37,524 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2019-12-19 05:57:37,524 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2019-12-19 05:57:37,524 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2019-12-19 05:57:37,526 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2019-12-19 05:57:37,527 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2019-12-19 05:57:37,528 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2019-12-19 05:57:37,529 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2019-12-19 05:57:37,531 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2019-12-19 05:57:37,531 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2019-12-19 05:57:37,532 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2019-12-19 05:57:37,534 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2019-12-19 05:57:37,534 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2019-12-19 05:57:37,534 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2019-12-19 05:57:37,535 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2019-12-19 05:57:37,535 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2019-12-19 05:57:37,538 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2019-12-19 05:57:37,538 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2019-12-19 05:57:37,540 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2019-12-19 05:57:37,568 INFO L113 SettingsManager]: Loading preferences was successful [2019-12-19 05:57:37,569 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2019-12-19 05:57:37,572 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2019-12-19 05:57:37,572 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2019-12-19 05:57:37,572 INFO L138 SettingsManager]: * Use SBE=true [2019-12-19 05:57:37,573 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2019-12-19 05:57:37,573 INFO L138 SettingsManager]: * sizeof long=4 [2019-12-19 05:57:37,573 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2019-12-19 05:57:37,573 INFO L138 SettingsManager]: * sizeof POINTER=4 [2019-12-19 05:57:37,573 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2019-12-19 05:57:37,574 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2019-12-19 05:57:37,574 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2019-12-19 05:57:37,575 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2019-12-19 05:57:37,575 INFO L138 SettingsManager]: * sizeof long double=12 [2019-12-19 05:57:37,575 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2019-12-19 05:57:37,575 INFO L138 SettingsManager]: * Use constant arrays=true [2019-12-19 05:57:37,576 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2019-12-19 05:57:37,576 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2019-12-19 05:57:37,576 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2019-12-19 05:57:37,576 INFO L138 SettingsManager]: * To the following directory=./dump/ [2019-12-19 05:57:37,577 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2019-12-19 05:57:37,577 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2019-12-19 05:57:37,578 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2019-12-19 05:57:37,578 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2019-12-19 05:57:37,578 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2019-12-19 05:57:37,578 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2019-12-19 05:57:37,578 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2019-12-19 05:57:37,579 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2019-12-19 05:57:37,579 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2019-12-19 05:57:37,580 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2019-12-19 05:57:37,831 INFO L81 nceAwareModelManager]: Repository-Root is: /tmp [2019-12-19 05:57:37,844 INFO L258 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2019-12-19 05:57:37,848 INFO L214 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2019-12-19 05:57:37,850 INFO L271 PluginConnector]: Initializing CDTParser... [2019-12-19 05:57:37,850 INFO L275 PluginConnector]: CDTParser initialized [2019-12-19 05:57:37,851 INFO L428 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2019-12-19 05:57:37,911 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e1acf39/b99447fc7c2949e09c1a2d3a6e45160f/FLAGbb09ccc9a [2019-12-19 05:57:38,393 INFO L306 CDTParser]: Found 1 translation units. [2019-12-19 05:57:38,393 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/pthread-nondet/nondet-loop-bound-2.i [2019-12-19 05:57:38,411 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e1acf39/b99447fc7c2949e09c1a2d3a6e45160f/FLAGbb09ccc9a [2019-12-19 05:57:38,735 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/e4e1acf39/b99447fc7c2949e09c1a2d3a6e45160f [2019-12-19 05:57:38,745 INFO L296 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2019-12-19 05:57:38,746 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2019-12-19 05:57:38,748 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2019-12-19 05:57:38,748 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2019-12-19 05:57:38,751 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2019-12-19 05:57:38,752 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:57:38" (1/1) ... [2019-12-19 05:57:38,755 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@4c1b220f and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:38, skipping insertion in model container [2019-12-19 05:57:38,755 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 19.12 05:57:38" (1/1) ... [2019-12-19 05:57:38,763 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2019-12-19 05:57:38,818 INFO L178 MainTranslator]: Built tables and reachable declarations [2019-12-19 05:57:39,263 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:57:39,272 INFO L203 MainTranslator]: Completed pre-run [2019-12-19 05:57:39,315 INFO L206 PostProcessor]: Analyzing one entry point: main [2019-12-19 05:57:39,387 INFO L208 MainTranslator]: Completed translation [2019-12-19 05:57:39,387 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39 WrapperNode [2019-12-19 05:57:39,387 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2019-12-19 05:57:39,388 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2019-12-19 05:57:39,388 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2019-12-19 05:57:39,389 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2019-12-19 05:57:39,397 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,412 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,434 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2019-12-19 05:57:39,435 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2019-12-19 05:57:39,435 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2019-12-19 05:57:39,435 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2019-12-19 05:57:39,442 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,442 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,445 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,445 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,450 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,454 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,456 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (1/1) ... [2019-12-19 05:57:39,459 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2019-12-19 05:57:39,459 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2019-12-19 05:57:39,460 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2019-12-19 05:57:39,460 INFO L275 PluginConnector]: RCFGBuilder initialized [2019-12-19 05:57:39,461 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (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 [2019-12-19 05:57:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure thr2 [2019-12-19 05:57:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thr2 [2019-12-19 05:57:39,524 INFO L130 BoogieDeclarations]: Found specification of procedure thr1 [2019-12-19 05:57:39,524 INFO L138 BoogieDeclarations]: Found implementation of procedure thr1 [2019-12-19 05:57:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2019-12-19 05:57:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2019-12-19 05:57:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2019-12-19 05:57:39,525 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2019-12-19 05:57:39,525 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2019-12-19 05:57:39,529 WARN L205 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2019-12-19 05:57:39,855 INFO L282 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2019-12-19 05:57:39,855 INFO L287 CfgBuilder]: Removed 7 assume(true) statements. [2019-12-19 05:57:39,857 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:57:39 BoogieIcfgContainer [2019-12-19 05:57:39,857 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2019-12-19 05:57:39,858 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2019-12-19 05:57:39,858 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2019-12-19 05:57:39,862 INFO L275 PluginConnector]: TraceAbstraction initialized [2019-12-19 05:57:39,862 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 19.12 05:57:38" (1/3) ... [2019-12-19 05:57:39,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a967bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:57:39, skipping insertion in model container [2019-12-19 05:57:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 19.12 05:57:39" (2/3) ... [2019-12-19 05:57:39,863 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@a967bf0 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 19.12 05:57:39, skipping insertion in model container [2019-12-19 05:57:39,863 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 19.12 05:57:39" (3/3) ... [2019-12-19 05:57:39,869 INFO L109 eAbstractionObserver]: Analyzing ICFG nondet-loop-bound-2.i [2019-12-19 05:57:39,879 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2019-12-19 05:57:39,879 INFO L156 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2019-12-19 05:57:39,886 INFO L168 ceAbstractionStarter]: Appying trace abstraction to program that has 1 error locations. [2019-12-19 05:57:39,887 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2019-12-19 05:57:39,911 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,911 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,912 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,912 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,912 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,912 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,913 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,913 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,914 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,914 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,915 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,915 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,916 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,921 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,921 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,922 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,923 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,924 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,929 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,929 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,929 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,930 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of1ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,930 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of1ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:39,945 INFO L249 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2019-12-19 05:57:39,965 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:57:39,965 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:57:39,965 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:57:39,965 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:57:39,966 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:57:39,966 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:57:39,966 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:57:39,966 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:57:39,977 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 57 places, 53 transitions [2019-12-19 05:57:40,040 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 1000 states. [2019-12-19 05:57:40,042 INFO L276 IsEmpty]: Start isEmpty. Operand 1000 states. [2019-12-19 05:57:40,052 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:57:40,052 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:40,053 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:40,054 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-19 05:57:40,060 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:40,060 INFO L82 PathProgramCache]: Analyzing trace with hash -545237580, now seen corresponding path program 1 times [2019-12-19 05:57:40,070 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:40,070 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1814958195] [2019-12-19 05:57:40,070 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:40,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:40,404 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:40,405 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1814958195] [2019-12-19 05:57:40,405 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:57:40,406 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:57:40,407 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [732359472] [2019-12-19 05:57:40,412 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:57:40,413 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:40,427 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:57:40,428 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:57:40,430 INFO L87 Difference]: Start difference. First operand 1000 states. Second operand 6 states. [2019-12-19 05:57:40,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:57:40,643 INFO L93 Difference]: Finished difference Result 1006 states and 2468 transitions. [2019-12-19 05:57:40,643 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:57:40,645 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 05:57:40,663 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:57:40,688 INFO L225 Difference]: With dead ends: 1006 [2019-12-19 05:57:40,688 INFO L226 Difference]: Without dead ends: 678 [2019-12-19 05:57:40,694 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:57:40,718 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 678 states. [2019-12-19 05:57:40,815 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 678 to 646. [2019-12-19 05:57:40,817 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 646 states. [2019-12-19 05:57:40,821 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 646 states to 646 states and 1560 transitions. [2019-12-19 05:57:40,826 INFO L78 Accepts]: Start accepts. Automaton has 646 states and 1560 transitions. Word has length 25 [2019-12-19 05:57:40,826 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:57:40,827 INFO L462 AbstractCegarLoop]: Abstraction has 646 states and 1560 transitions. [2019-12-19 05:57:40,827 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:57:40,827 INFO L276 IsEmpty]: Start isEmpty. Operand 646 states and 1560 transitions. [2019-12-19 05:57:40,830 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 32 [2019-12-19 05:57:40,830 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:40,830 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:40,831 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-19 05:57:40,832 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:40,832 INFO L82 PathProgramCache]: Analyzing trace with hash -1722225356, now seen corresponding path program 1 times [2019-12-19 05:57:40,832 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:40,833 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [968509890] [2019-12-19 05:57:40,833 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:40,910 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:57:40,960 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:57:40,996 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-19 05:57:40,996 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-19 05:57:40,998 WARN L364 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-19 05:57:40,998 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2019-12-19 05:57:41,009 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,009 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,010 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,011 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,011 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,013 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,013 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,014 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,014 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,015 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,015 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,015 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,016 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,016 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,016 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,016 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,017 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,017 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,018 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,018 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,018 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,018 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,020 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,020 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,020 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,021 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,021 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,024 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,024 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,026 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,027 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,027 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of2ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,027 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of2ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:41,029 INFO L249 AbstractCegarLoop]: Starting to check reachability of 5 error locations. [2019-12-19 05:57:41,029 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:57:41,029 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:57:41,029 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:57:41,030 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:57:41,030 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:57:41,030 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:57:41,030 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:57:41,030 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:57:41,033 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 76 places, 69 transitions [2019-12-19 05:57:41,329 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 6130 states. [2019-12-19 05:57:41,329 INFO L276 IsEmpty]: Start isEmpty. Operand 6130 states. [2019-12-19 05:57:41,334 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:57:41,334 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:41,334 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:41,334 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:57:41,335 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:41,335 INFO L82 PathProgramCache]: Analyzing trace with hash -1186811608, now seen corresponding path program 1 times [2019-12-19 05:57:41,335 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:41,335 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1160360862] [2019-12-19 05:57:41,335 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:41,382 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:41,470 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:41,470 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1160360862] [2019-12-19 05:57:41,470 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:57:41,470 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:57:41,471 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [657307580] [2019-12-19 05:57:41,471 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:57:41,471 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:41,472 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:57:41,472 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:57:41,473 INFO L87 Difference]: Start difference. First operand 6130 states. Second operand 6 states. [2019-12-19 05:57:41,751 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:57:41,752 INFO L93 Difference]: Finished difference Result 7222 states and 23490 transitions. [2019-12-19 05:57:41,753 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:57:41,753 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 05:57:41,753 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:57:41,801 INFO L225 Difference]: With dead ends: 7222 [2019-12-19 05:57:41,802 INFO L226 Difference]: Without dead ends: 5134 [2019-12-19 05:57:41,803 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:57:41,836 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 5134 states. [2019-12-19 05:57:41,986 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 5134 to 4786. [2019-12-19 05:57:41,986 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4786 states. [2019-12-19 05:57:42,013 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4786 states to 4786 states and 15490 transitions. [2019-12-19 05:57:42,013 INFO L78 Accepts]: Start accepts. Automaton has 4786 states and 15490 transitions. Word has length 25 [2019-12-19 05:57:42,013 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:57:42,014 INFO L462 AbstractCegarLoop]: Abstraction has 4786 states and 15490 transitions. [2019-12-19 05:57:42,014 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:57:42,014 INFO L276 IsEmpty]: Start isEmpty. Operand 4786 states and 15490 transitions. [2019-12-19 05:57:42,016 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:57:42,016 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:42,017 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:42,017 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:57:42,017 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:42,018 INFO L82 PathProgramCache]: Analyzing trace with hash -433353734, now seen corresponding path program 1 times [2019-12-19 05:57:42,018 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:42,018 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2023323360] [2019-12-19 05:57:42,018 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:42,033 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:42,128 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:42,129 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2023323360] [2019-12-19 05:57:42,129 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:57:42,129 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:57:42,130 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [239972199] [2019-12-19 05:57:42,130 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:57:42,130 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:42,130 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:57:42,131 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:57:42,131 INFO L87 Difference]: Start difference. First operand 4786 states and 15490 transitions. Second operand 8 states. [2019-12-19 05:57:42,823 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:57:42,824 INFO L93 Difference]: Finished difference Result 6726 states and 20872 transitions. [2019-12-19 05:57:42,824 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:57:42,825 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:57:42,825 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:57:42,870 INFO L225 Difference]: With dead ends: 6726 [2019-12-19 05:57:42,870 INFO L226 Difference]: Without dead ends: 6134 [2019-12-19 05:57:42,874 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.3s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-19 05:57:42,898 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 6134 states. [2019-12-19 05:57:43,011 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 6134 to 4028. [2019-12-19 05:57:43,012 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 4028 states. [2019-12-19 05:57:43,026 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 4028 states to 4028 states and 13063 transitions. [2019-12-19 05:57:43,027 INFO L78 Accepts]: Start accepts. Automaton has 4028 states and 13063 transitions. Word has length 34 [2019-12-19 05:57:43,027 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:57:43,027 INFO L462 AbstractCegarLoop]: Abstraction has 4028 states and 13063 transitions. [2019-12-19 05:57:43,027 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:57:43,028 INFO L276 IsEmpty]: Start isEmpty. Operand 4028 states and 13063 transitions. [2019-12-19 05:57:43,035 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 39 [2019-12-19 05:57:43,036 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:43,036 INFO L411 BasicCegarLoop]: trace histogram [3, 3, 2, 2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:43,037 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:57:43,044 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:43,044 INFO L82 PathProgramCache]: Analyzing trace with hash -1363955682, now seen corresponding path program 1 times [2019-12-19 05:57:43,044 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:43,046 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1756876491] [2019-12-19 05:57:43,046 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:43,082 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:57:43,115 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:57:43,132 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-19 05:57:43,133 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-19 05:57:43,133 WARN L364 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-19 05:57:43,133 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2019-12-19 05:57:43,153 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,157 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,157 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,158 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,158 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,158 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,158 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,159 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,159 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,160 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,160 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,160 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,160 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,160 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,160 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,161 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,161 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,161 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,161 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,161 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,161 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,162 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,162 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,163 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,163 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,164 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,164 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,164 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,164 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,165 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,165 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,165 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,165 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,165 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,165 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,166 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,166 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,166 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,166 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,166 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,166 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,166 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,167 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,167 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,167 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,167 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,168 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,168 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,168 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,168 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,170 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,170 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,170 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,171 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,171 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,173 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,173 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,173 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,174 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,174 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,176 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,177 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,177 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,178 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,180 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,180 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,181 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,181 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,181 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,183 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,183 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,183 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,184 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,184 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of3ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,184 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of3ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:57:43,187 INFO L249 AbstractCegarLoop]: Starting to check reachability of 6 error locations. [2019-12-19 05:57:43,187 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:57:43,187 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:57:43,188 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:57:43,188 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:57:43,188 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:57:43,188 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:57:43,188 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:57:43,188 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:57:43,190 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 95 places, 85 transitions [2019-12-19 05:57:47,532 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 36910 states. [2019-12-19 05:57:47,533 INFO L276 IsEmpty]: Start isEmpty. Operand 36910 states. [2019-12-19 05:57:47,533 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:57:47,533 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:47,533 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:47,534 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:57:47,534 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:47,534 INFO L82 PathProgramCache]: Analyzing trace with hash 458727436, now seen corresponding path program 1 times [2019-12-19 05:57:47,535 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:47,535 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1058966681] [2019-12-19 05:57:47,535 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:47,545 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:47,601 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:47,602 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1058966681] [2019-12-19 05:57:47,602 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:57:47,602 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:57:47,602 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1710341445] [2019-12-19 05:57:47,603 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:57:47,603 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:47,603 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:57:47,603 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:57:47,607 INFO L87 Difference]: Start difference. First operand 36910 states. Second operand 6 states. [2019-12-19 05:57:48,376 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:57:48,378 INFO L93 Difference]: Finished difference Result 48046 states and 195962 transitions. [2019-12-19 05:57:48,378 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 05:57:48,378 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 05:57:48,379 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:57:48,584 INFO L225 Difference]: With dead ends: 48046 [2019-12-19 05:57:48,584 INFO L226 Difference]: Without dead ends: 34886 [2019-12-19 05:57:48,585 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 05:57:48,918 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 34886 states. [2019-12-19 05:57:50,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 34886 to 32146. [2019-12-19 05:57:50,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 32146 states. [2019-12-19 05:57:50,868 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 32146 states to 32146 states and 131030 transitions. [2019-12-19 05:57:50,868 INFO L78 Accepts]: Start accepts. Automaton has 32146 states and 131030 transitions. Word has length 25 [2019-12-19 05:57:50,869 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:57:50,869 INFO L462 AbstractCegarLoop]: Abstraction has 32146 states and 131030 transitions. [2019-12-19 05:57:50,869 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 05:57:50,869 INFO L276 IsEmpty]: Start isEmpty. Operand 32146 states and 131030 transitions. [2019-12-19 05:57:50,870 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 05:57:50,870 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:50,870 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:50,871 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:57:50,871 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:50,871 INFO L82 PathProgramCache]: Analyzing trace with hash -811555619, now seen corresponding path program 1 times [2019-12-19 05:57:50,872 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:50,872 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [266205505] [2019-12-19 05:57:50,872 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:50,885 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:50,983 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:50,984 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [266205505] [2019-12-19 05:57:50,984 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:57:50,984 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:57:50,984 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [394540182] [2019-12-19 05:57:50,985 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:57:50,985 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:50,985 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:57:50,985 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:57:50,987 INFO L87 Difference]: Start difference. First operand 32146 states and 131030 transitions. Second operand 8 states. [2019-12-19 05:57:53,190 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:57:53,191 INFO L93 Difference]: Finished difference Result 55450 states and 215966 transitions. [2019-12-19 05:57:53,191 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:57:53,191 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 05:57:53,192 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:57:53,373 INFO L225 Difference]: With dead ends: 55450 [2019-12-19 05:57:53,374 INFO L226 Difference]: Without dead ends: 52042 [2019-12-19 05:57:53,374 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-19 05:57:53,672 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52042 states. [2019-12-19 05:57:54,663 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52042 to 30648. [2019-12-19 05:57:54,664 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 30648 states. [2019-12-19 05:57:54,772 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 30648 states to 30648 states and 124237 transitions. [2019-12-19 05:57:54,772 INFO L78 Accepts]: Start accepts. Automaton has 30648 states and 124237 transitions. Word has length 34 [2019-12-19 05:57:54,773 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:57:54,773 INFO L462 AbstractCegarLoop]: Abstraction has 30648 states and 124237 transitions. [2019-12-19 05:57:54,773 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:57:54,773 INFO L276 IsEmpty]: Start isEmpty. Operand 30648 states and 124237 transitions. [2019-12-19 05:57:54,781 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-19 05:57:54,782 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:54,782 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:54,782 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:57:54,783 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:54,783 INFO L82 PathProgramCache]: Analyzing trace with hash 330402858, now seen corresponding path program 1 times [2019-12-19 05:57:54,783 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:54,783 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1355621553] [2019-12-19 05:57:54,783 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:54,793 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:54,870 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-19 05:57:54,870 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1355621553] [2019-12-19 05:57:54,870 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:57:54,871 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 05:57:54,871 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1984573129] [2019-12-19 05:57:54,871 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 05:57:54,871 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:54,872 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 05:57:54,872 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 05:57:54,872 INFO L87 Difference]: Start difference. First operand 30648 states and 124237 transitions. Second operand 8 states. [2019-12-19 05:57:57,236 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:57:57,236 INFO L93 Difference]: Finished difference Result 55918 states and 216366 transitions. [2019-12-19 05:57:57,237 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 05:57:57,237 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 41 [2019-12-19 05:57:57,237 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:57:57,503 INFO L225 Difference]: With dead ends: 55918 [2019-12-19 05:57:57,504 INFO L226 Difference]: Without dead ends: 52446 [2019-12-19 05:57:57,504 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 79 ImplicationChecksByTransitivity, 0.2s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-19 05:57:57,752 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 52446 states. [2019-12-19 05:57:58,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 52446 to 28812. [2019-12-19 05:57:58,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28812 states. [2019-12-19 05:57:58,586 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28812 states to 28812 states and 115895 transitions. [2019-12-19 05:57:58,586 INFO L78 Accepts]: Start accepts. Automaton has 28812 states and 115895 transitions. Word has length 41 [2019-12-19 05:57:58,590 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:57:58,591 INFO L462 AbstractCegarLoop]: Abstraction has 28812 states and 115895 transitions. [2019-12-19 05:57:58,591 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 05:57:58,591 INFO L276 IsEmpty]: Start isEmpty. Operand 28812 states and 115895 transitions. [2019-12-19 05:57:58,603 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-19 05:57:58,603 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:57:58,603 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:57:58,604 INFO L410 AbstractCegarLoop]: === Iteration 4 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:57:58,604 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:57:58,604 INFO L82 PathProgramCache]: Analyzing trace with hash 169292204, now seen corresponding path program 1 times [2019-12-19 05:57:58,604 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:57:58,606 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [401527857] [2019-12-19 05:57:58,606 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:57:58,617 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:58,711 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:58,712 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [401527857] [2019-12-19 05:57:58,713 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1704277010] [2019-12-19 05:57:58,713 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 2 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-19 05:57:58,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:57:58,802 INFO L264 TraceCheckSpWp]: Trace formula consists of 111 conjuncts, 12 conjunts are in the unsatisfiable core [2019-12-19 05:57:58,805 INFO L287 TraceCheckSpWp]: Computing forward predicates... [2019-12-19 05:57:58,949 INFO L319 QuantifierPusher]: Applying distributivity, recursing on 2 terms [2019-12-19 05:57:58,988 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 3 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:57:58,989 INFO L220 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2019-12-19 05:57:58,989 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [10, 10] total 18 [2019-12-19 05:57:58,989 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1320513975] [2019-12-19 05:57:58,990 INFO L442 AbstractCegarLoop]: Interpolant automaton has 18 states [2019-12-19 05:57:58,990 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:57:58,990 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 18 interpolants. [2019-12-19 05:57:58,991 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=51, Invalid=255, Unknown=0, NotChecked=0, Total=306 [2019-12-19 05:57:58,991 INFO L87 Difference]: Start difference. First operand 28812 states and 115895 transitions. Second operand 18 states. [2019-12-19 05:58:00,891 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:58:00,892 INFO L93 Difference]: Finished difference Result 60118 states and 228798 transitions. [2019-12-19 05:58:00,892 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-19 05:58:00,892 INFO L78 Accepts]: Start accepts. Automaton has 18 states. Word has length 45 [2019-12-19 05:58:00,893 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:58:01,669 INFO L225 Difference]: With dead ends: 60118 [2019-12-19 05:58:01,669 INFO L226 Difference]: Without dead ends: 58630 [2019-12-19 05:58:01,671 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 38 SyntacticMatches, 0 SemanticMatches, 56 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 928 ImplicationChecksByTransitivity, 1.1s TimeCoverageRelationStatistics Valid=720, Invalid=2586, Unknown=0, NotChecked=0, Total=3306 [2019-12-19 05:58:01,887 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 58630 states. [2019-12-19 05:58:02,655 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 58630 to 28160. [2019-12-19 05:58:02,656 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 28160 states. [2019-12-19 05:58:02,734 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 28160 states to 28160 states and 113373 transitions. [2019-12-19 05:58:02,734 INFO L78 Accepts]: Start accepts. Automaton has 28160 states and 113373 transitions. Word has length 45 [2019-12-19 05:58:02,734 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:58:02,735 INFO L462 AbstractCegarLoop]: Abstraction has 28160 states and 113373 transitions. [2019-12-19 05:58:02,735 INFO L463 AbstractCegarLoop]: Interpolant automaton has 18 states. [2019-12-19 05:58:02,735 INFO L276 IsEmpty]: Start isEmpty. Operand 28160 states and 113373 transitions. [2019-12-19 05:58:02,749 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-19 05:58:02,749 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:58:02,750 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:58:03,188 WARN L499 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2019-12-19 05:58:03,188 INFO L410 AbstractCegarLoop]: === Iteration 5 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:58:03,189 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:58:03,189 INFO L82 PathProgramCache]: Analyzing trace with hash 1634131850, now seen corresponding path program 2 times [2019-12-19 05:58:03,189 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:58:03,189 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [707908889] [2019-12-19 05:58:03,190 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:58:03,212 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:58:03,330 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-19 05:58:03,331 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [707908889] [2019-12-19 05:58:03,331 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:58:03,331 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [10] imperfect sequences [] total 10 [2019-12-19 05:58:03,332 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1322204061] [2019-12-19 05:58:03,333 INFO L442 AbstractCegarLoop]: Interpolant automaton has 10 states [2019-12-19 05:58:03,334 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:58:03,335 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2019-12-19 05:58:03,335 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=21, Invalid=69, Unknown=0, NotChecked=0, Total=90 [2019-12-19 05:58:03,335 INFO L87 Difference]: Start difference. First operand 28160 states and 113373 transitions. Second operand 10 states. [2019-12-19 05:58:04,619 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 05:58:04,620 INFO L93 Difference]: Finished difference Result 59086 states and 224854 transitions. [2019-12-19 05:58:04,620 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 46 states. [2019-12-19 05:58:04,620 INFO L78 Accepts]: Start accepts. Automaton has 10 states. Word has length 45 [2019-12-19 05:58:04,620 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 05:58:04,788 INFO L225 Difference]: With dead ends: 59086 [2019-12-19 05:58:04,788 INFO L226 Difference]: Without dead ends: 57454 [2019-12-19 05:58:04,789 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 48 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 46 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 686 ImplicationChecksByTransitivity, 0.5s TimeCoverageRelationStatistics Valid=487, Invalid=1769, Unknown=0, NotChecked=0, Total=2256 [2019-12-19 05:58:05,017 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 57454 states. [2019-12-19 05:58:05,862 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 57454 to 25152. [2019-12-19 05:58:05,863 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 25152 states. [2019-12-19 05:58:05,934 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25152 states to 25152 states and 102287 transitions. [2019-12-19 05:58:05,934 INFO L78 Accepts]: Start accepts. Automaton has 25152 states and 102287 transitions. Word has length 45 [2019-12-19 05:58:05,935 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 05:58:05,935 INFO L462 AbstractCegarLoop]: Abstraction has 25152 states and 102287 transitions. [2019-12-19 05:58:05,935 INFO L463 AbstractCegarLoop]: Interpolant automaton has 10 states. [2019-12-19 05:58:05,935 INFO L276 IsEmpty]: Start isEmpty. Operand 25152 states and 102287 transitions. [2019-12-19 05:58:05,943 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 46 [2019-12-19 05:58:05,943 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:58:05,943 INFO L411 BasicCegarLoop]: trace histogram [4, 4, 3, 3, 3, 3, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:58:05,944 INFO L410 AbstractCegarLoop]: === Iteration 6 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION]=== [2019-12-19 05:58:05,944 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:58:05,944 INFO L82 PathProgramCache]: Analyzing trace with hash -119237525, now seen corresponding path program 1 times [2019-12-19 05:58:05,944 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:58:05,944 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1092691063] [2019-12-19 05:58:05,945 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:58:05,958 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:58:05,968 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2019-12-19 05:58:05,977 INFO L174 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2019-12-19 05:58:05,977 INFO L476 BasicCegarLoop]: Counterexample might be feasible [2019-12-19 05:58:05,977 WARN L364 ceAbstractionStarter]: 3 thread instances were not sufficient, I will increase this number and restart the analysis [2019-12-19 05:58:05,977 INFO L340 ceAbstractionStarter]: Constructing petrified ICFG for 4 thread instances. [2019-12-19 05:58:05,989 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,989 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,989 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,990 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,990 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,991 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,991 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,991 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,992 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,992 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,993 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,993 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,994 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,994 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,994 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,994 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,994 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,994 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,995 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,995 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,995 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,995 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,996 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,996 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,997 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,997 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,997 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,997 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,997 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,997 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,998 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,998 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,999 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:05,999 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,000 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,000 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,000 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,000 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,001 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread1of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,001 WARN L315 ript$VariableManager]: TermVariabe thr2Thread1of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,011 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,012 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,012 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread2of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,012 WARN L315 ript$VariableManager]: TermVariabe thr2Thread2of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,013 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,014 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,014 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,014 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread3of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,014 WARN L315 ript$VariableManager]: TermVariabe thr2Thread3of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,016 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~t~0 not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,016 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,016 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,016 WARN L315 ript$VariableManager]: TermVariabe thr2Thread4of4ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,016 WARN L315 ript$VariableManager]: TermVariabe |thr2Thread4of4ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,018 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,018 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,019 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread1of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,019 WARN L315 ript$VariableManager]: TermVariabe thr1Thread1of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,020 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,021 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,021 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,021 WARN L315 ript$VariableManager]: TermVariabe thr1Thread2of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,021 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,021 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread2of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,022 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,023 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread3of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,023 WARN L315 ript$VariableManager]: TermVariabe thr1Thread3of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,025 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,025 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,025 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,025 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,026 WARN L315 ript$VariableManager]: TermVariabe thr1Thread4of4ForFork1___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,026 WARN L315 ript$VariableManager]: TermVariabe |thr1Thread4of4ForFork1_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2019-12-19 05:58:06,027 INFO L249 AbstractCegarLoop]: Starting to check reachability of 7 error locations. [2019-12-19 05:58:06,027 INFO L373 AbstractCegarLoop]: Interprodecural is true [2019-12-19 05:58:06,027 INFO L374 AbstractCegarLoop]: Hoare is true [2019-12-19 05:58:06,028 INFO L375 AbstractCegarLoop]: Compute interpolants for FPandBP [2019-12-19 05:58:06,028 INFO L376 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2019-12-19 05:58:06,028 INFO L377 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2019-12-19 05:58:06,028 INFO L378 AbstractCegarLoop]: Difference is false [2019-12-19 05:58:06,028 INFO L379 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2019-12-19 05:58:06,028 INFO L383 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2019-12-19 05:58:06,030 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 114 places, 101 transitions [2019-12-19 05:59:57,040 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result 221590 states. [2019-12-19 05:59:57,040 INFO L276 IsEmpty]: Start isEmpty. Operand 221590 states. [2019-12-19 05:59:57,041 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2019-12-19 05:59:57,041 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 05:59:57,041 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 05:59:57,041 INFO L410 AbstractCegarLoop]: === Iteration 1 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-19 05:59:57,041 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 05:59:57,041 INFO L82 PathProgramCache]: Analyzing trace with hash 96412256, now seen corresponding path program 1 times [2019-12-19 05:59:57,042 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 05:59:57,042 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1722299959] [2019-12-19 05:59:57,042 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 05:59:57,051 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 05:59:57,089 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 05:59:57,089 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1722299959] [2019-12-19 05:59:57,089 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 05:59:57,090 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6] imperfect sequences [] total 6 [2019-12-19 05:59:57,090 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [319435244] [2019-12-19 05:59:57,090 INFO L442 AbstractCegarLoop]: Interpolant automaton has 6 states [2019-12-19 05:59:57,090 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 05:59:57,090 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 6 interpolants. [2019-12-19 05:59:57,091 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=10, Invalid=20, Unknown=0, NotChecked=0, Total=30 [2019-12-19 05:59:57,091 INFO L87 Difference]: Start difference. First operand 221590 states. Second operand 6 states. [2019-12-19 06:00:00,386 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 06:00:00,386 INFO L93 Difference]: Finished difference Result 307102 states and 1510066 transitions. [2019-12-19 06:00:00,386 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2019-12-19 06:00:00,386 INFO L78 Accepts]: Start accepts. Automaton has 6 states. Word has length 25 [2019-12-19 06:00:00,387 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 06:00:01,226 INFO L225 Difference]: With dead ends: 307102 [2019-12-19 06:00:01,226 INFO L226 Difference]: Without dead ends: 225462 [2019-12-19 06:00:01,226 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 9 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 5 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=27, Invalid=45, Unknown=0, NotChecked=0, Total=72 [2019-12-19 06:00:14,036 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 225462 states. [2019-12-19 06:00:19,108 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 225462 to 206386. [2019-12-19 06:00:19,109 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 206386 states. [2019-12-19 06:00:28,943 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 206386 states to 206386 states and 1016190 transitions. [2019-12-19 06:00:28,943 INFO L78 Accepts]: Start accepts. Automaton has 206386 states and 1016190 transitions. Word has length 25 [2019-12-19 06:00:28,943 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 06:00:28,943 INFO L462 AbstractCegarLoop]: Abstraction has 206386 states and 1016190 transitions. [2019-12-19 06:00:28,943 INFO L463 AbstractCegarLoop]: Interpolant automaton has 6 states. [2019-12-19 06:00:28,943 INFO L276 IsEmpty]: Start isEmpty. Operand 206386 states and 1016190 transitions. [2019-12-19 06:00:28,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 35 [2019-12-19 06:00:28,945 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 06:00:28,945 INFO L411 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 06:00:28,946 INFO L410 AbstractCegarLoop]: === Iteration 2 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-19 06:00:28,946 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 06:00:28,946 INFO L82 PathProgramCache]: Analyzing trace with hash -1447088652, now seen corresponding path program 1 times [2019-12-19 06:00:28,946 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 06:00:28,947 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [129802810] [2019-12-19 06:00:28,947 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 06:00:28,954 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 06:00:29,012 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2019-12-19 06:00:29,013 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [129802810] [2019-12-19 06:00:29,013 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 06:00:29,013 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 06:00:29,013 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2004619507] [2019-12-19 06:00:29,014 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 06:00:29,015 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 06:00:29,015 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 06:00:29,015 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 06:00:29,015 INFO L87 Difference]: Start difference. First operand 206386 states and 1016190 transitions. Second operand 8 states. [2019-12-19 06:00:40,261 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2019-12-19 06:00:40,262 INFO L93 Difference]: Finished difference Result 395234 states and 1867854 transitions. [2019-12-19 06:00:40,262 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 06:00:40,262 INFO L78 Accepts]: Start accepts. Automaton has 8 states. Word has length 34 [2019-12-19 06:00:40,262 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2019-12-19 06:00:42,797 INFO L225 Difference]: With dead ends: 395234 [2019-12-19 06:00:42,798 INFO L226 Difference]: Without dead ends: 373906 [2019-12-19 06:00:42,798 INFO L631 BasicCegarLoop]: 0 DeclaredPredicates, 21 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 19 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 81 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=120, Invalid=300, Unknown=0, NotChecked=0, Total=420 [2019-12-19 06:00:47,084 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 373906 states. [2019-12-19 06:01:01,890 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 373906 to 209024. [2019-12-19 06:01:01,891 INFO L82 GeneralOperation]: Start removeUnreachable. Operand 209024 states. [2019-12-19 06:01:03,653 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 209024 states to 209024 states and 1021861 transitions. [2019-12-19 06:01:03,654 INFO L78 Accepts]: Start accepts. Automaton has 209024 states and 1021861 transitions. Word has length 34 [2019-12-19 06:01:03,654 INFO L84 Accepts]: Finished accepts. word is rejected. [2019-12-19 06:01:03,654 INFO L462 AbstractCegarLoop]: Abstraction has 209024 states and 1021861 transitions. [2019-12-19 06:01:03,654 INFO L463 AbstractCegarLoop]: Interpolant automaton has 8 states. [2019-12-19 06:01:03,654 INFO L276 IsEmpty]: Start isEmpty. Operand 209024 states and 1021861 transitions. [2019-12-19 06:01:03,658 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 42 [2019-12-19 06:01:03,658 INFO L403 BasicCegarLoop]: Found error trace [2019-12-19 06:01:03,658 INFO L411 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2019-12-19 06:01:03,658 INFO L410 AbstractCegarLoop]: === Iteration 3 === [thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, thr1Err0ASSERT_VIOLATIONERROR_FUNCTION, ULTIMATE.startErr1INUSE_VIOLATION, ULTIMATE.startErr0INUSE_VIOLATION]=== [2019-12-19 06:01:03,659 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2019-12-19 06:01:03,659 INFO L82 PathProgramCache]: Analyzing trace with hash -1585020680, now seen corresponding path program 1 times [2019-12-19 06:01:03,659 INFO L163 FreeRefinementEngine]: Executing refinement strategy CAMEL [2019-12-19 06:01:03,659 INFO L348 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [449233002] [2019-12-19 06:01:03,659 INFO L94 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2019-12-19 06:01:03,668 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2019-12-19 06:01:03,758 INFO L134 CoverageAnalysis]: Checked inductivity of 3 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 3 trivial. 0 not checked. [2019-12-19 06:01:03,759 INFO L348 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [449233002] [2019-12-19 06:01:03,759 INFO L220 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2019-12-19 06:01:03,759 INFO L233 FreeRefinementEngine]: Number of different interpolants: perfect sequences [8] imperfect sequences [] total 8 [2019-12-19 06:01:03,759 INFO L156 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1026237731] [2019-12-19 06:01:03,759 INFO L442 AbstractCegarLoop]: Interpolant automaton has 8 states [2019-12-19 06:01:03,760 INFO L143 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2019-12-19 06:01:03,760 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 8 interpolants. [2019-12-19 06:01:03,760 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=41, Unknown=0, NotChecked=0, Total=56 [2019-12-19 06:01:03,760 INFO L87 Difference]: Start difference. First operand 209024 states and 1021861 transitions. Second operand 8 states. Received shutdown request... [2019-12-19 06:01:11,630 INFO L142 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 20 states. [2019-12-19 06:01:11,630 WARN L527 AbstractCegarLoop]: Verification canceled [2019-12-19 06:01:11,637 WARN L227 ceAbstractionStarter]: Timeout [2019-12-19 06:01:11,638 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 19.12 06:01:11 BasicIcfg [2019-12-19 06:01:11,638 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2019-12-19 06:01:11,641 INFO L168 Benchmark]: Toolchain (without parser) took 212893.86 ms. Allocated memory was 140.0 MB in the beginning and 4.6 GB in the end (delta: 4.4 GB). Free memory was 103.4 MB in the beginning and 2.7 GB in the end (delta: -2.6 GB). Peak memory consumption was 4.9 GB. Max. memory is 7.1 GB. [2019-12-19 06:01:11,641 INFO L168 Benchmark]: CDTParser took 1.39 ms. Allocated memory is still 140.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 7.1 GB. [2019-12-19 06:01:11,642 INFO L168 Benchmark]: CACSL2BoogieTranslator took 640.33 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 163.7 MB in the end (delta: -60.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. [2019-12-19 06:01:11,643 INFO L168 Benchmark]: Boogie Procedure Inliner took 46.33 ms. Allocated memory is still 203.9 MB. Free memory was 163.7 MB in the beginning and 160.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. [2019-12-19 06:01:11,643 INFO L168 Benchmark]: Boogie Preprocessor took 24.36 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 160.0 MB in the end (delta: 923.8 kB). Peak memory consumption was 923.8 kB. Max. memory is 7.1 GB. [2019-12-19 06:01:11,644 INFO L168 Benchmark]: RCFGBuilder took 397.58 ms. Allocated memory is still 203.9 MB. Free memory was 160.0 MB in the beginning and 140.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. [2019-12-19 06:01:11,645 INFO L168 Benchmark]: TraceAbstraction took 211779.85 ms. Allocated memory was 203.9 MB in the beginning and 4.6 GB in the end (delta: 4.4 GB). Free memory was 139.9 MB in the beginning and 2.7 GB in the end (delta: -2.6 GB). Peak memory consumption was 4.8 GB. Max. memory is 7.1 GB. [2019-12-19 06:01:11,648 INFO L335 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 1.39 ms. Allocated memory is still 140.0 MB. Free memory is still 122.8 MB. There was no memory consumed. Max. memory is 7.1 GB. * CACSL2BoogieTranslator took 640.33 ms. Allocated memory was 140.0 MB in the beginning and 203.9 MB in the end (delta: 64.0 MB). Free memory was 103.0 MB in the beginning and 163.7 MB in the end (delta: -60.7 MB). Peak memory consumption was 25.6 MB. Max. memory is 7.1 GB. * Boogie Procedure Inliner took 46.33 ms. Allocated memory is still 203.9 MB. Free memory was 163.7 MB in the beginning and 160.9 MB in the end (delta: 2.8 MB). Peak memory consumption was 2.8 MB. Max. memory is 7.1 GB. * Boogie Preprocessor took 24.36 ms. Allocated memory is still 203.9 MB. Free memory was 160.9 MB in the beginning and 160.0 MB in the end (delta: 923.8 kB). Peak memory consumption was 923.8 kB. Max. memory is 7.1 GB. * RCFGBuilder took 397.58 ms. Allocated memory is still 203.9 MB. Free memory was 160.0 MB in the beginning and 140.8 MB in the end (delta: 19.2 MB). Peak memory consumption was 19.2 MB. Max. memory is 7.1 GB. * TraceAbstraction took 211779.85 ms. Allocated memory was 203.9 MB in the beginning and 4.6 GB in the end (delta: 4.4 GB). Free memory was 139.9 MB in the beginning and 2.7 GB in the end (delta: -2.6 GB). Peak memory consumption was 4.8 GB. Max. memory is 7.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - TimeoutResultAtElement [Line: 675]: Timeout (TraceAbstraction) Unable to prove that call of __VERIFIER_error() unreachable (line 675). Cancelled while BasicCegarLoop was constructing difference of abstraction (209024states) and FLOYD_HOARE automaton (currently 20 states, 8 states before enhancement),while ReachableStatesComputation was computing reachable states (62822 states constructedinput type IntersectNwa). - StatisticsResult: Ultimate Automizer benchmark data CFG has 3 procedures, 51 locations, 1 error locations. Result: TIMEOUT, OverallTime: 185.6s, OverallIterations: 3, TraceHistogramMax: 2, AutomataDifference: 25.7s, DeadEndRemovalTime: 0.0s, HoareAnnotationTime: 0.0s, HoareTripleCheckerStatistics: 549 SDtfs, 1194 SDslu, 1903 SDs, 0 SdLazy, 609 SolverSat, 14 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 0.5s Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 51 GetRequests, 6 SyntacticMatches, 0 SemanticMatches, 45 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 165 ImplicationChecksByTransitivity, 0.4s Time, 0.0s BasicInterpolantAutomatonTime, BiggestAbstraction: size=221590occurred 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: 48.5s AutomataMinimizationTime, 2 MinimizatonAttempts, 183958 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 0.0s SsaConstructionTime, 0.0s SatisfiabilityAnalysisTime, 0.1s InterpolantComputationTime, 100 NumberOfCodeBlocks, 100 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 97 ConstructedInterpolants, 0 QuantifiedInterpolants, 12524 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 3 InterpolantComputations, 3 PerfectInterpolantSequences, 3/3 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: Timeout Completed graceful shutdown