/usr/bin/java -Xmx16000000000 -Xss4m -jar ./plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata ./data -s ../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe-Separate.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml -i ../../../trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i -------------------------------------------------------------------------------- This is Ultimate 0.2.1-dev-770125f [2021-05-22 00:33:59,676 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-05-22 00:33:59,679 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-05-22 00:33:59,720 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... 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[2021-05-22 00:33:59,776 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-Separate.epf [2021-05-22 00:33:59,813 INFO L113 SettingsManager]: Loading preferences was successful [2021-05-22 00:33:59,813 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-05-22 00:33:59,813 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-05-22 00:33:59,813 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-05-22 00:33:59,816 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-05-22 00:33:59,816 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-05-22 00:33:59,816 INFO L138 SettingsManager]: * Use SBE=true [2021-05-22 00:33:59,816 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-05-22 00:33:59,816 INFO L138 SettingsManager]: * sizeof long=4 [2021-05-22 00:33:59,817 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-05-22 00:33:59,817 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * sizeof long double=12 [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * Use constant arrays=true [2021-05-22 00:33:59,818 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2021-05-22 00:33:59,819 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-05-22 00:33:59,819 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-05-22 00:33:59,819 INFO L138 SettingsManager]: * To the following directory=./dump/ [2021-05-22 00:33:59,819 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-05-22 00:33:59,819 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-22 00:33:59,819 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-05-22 00:33:59,819 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-05-22 00:33:59,820 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2021-05-22 00:33:59,820 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-05-22 00:33:59,820 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-05-22 00:33:59,820 INFO L138 SettingsManager]: * Large block encoding in concurrent analysis=OFF [2021-05-22 00:33:59,820 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2021-05-22 00:33:59,820 INFO L138 SettingsManager]: * Check the insufficient thread errors last=true [2021-05-22 00:33:59,821 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release [2021-05-22 00:34:00,128 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-05-22 00:34:00,149 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-05-22 00:34:00,151 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-05-22 00:34:00,152 INFO L271 PluginConnector]: Initializing CDTParser... [2021-05-22 00:34:00,153 INFO L275 PluginConnector]: CDTParser initialized [2021-05-22 00:34:00,153 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i [2021-05-22 00:34:00,212 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89cc2864d/25747f563280430bb9b379d2721c0fb6/FLAGc01e58b41 [2021-05-22 00:34:00,693 INFO L306 CDTParser]: Found 1 translation units. [2021-05-22 00:34:00,694 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i [2021-05-22 00:34:00,712 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89cc2864d/25747f563280430bb9b379d2721c0fb6/FLAGc01e58b41 [2021-05-22 00:34:00,996 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/89cc2864d/25747f563280430bb9b379d2721c0fb6 [2021-05-22 00:34:00,998 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-05-22 00:34:01,000 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-05-22 00:34:01,003 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-05-22 00:34:01,003 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-05-22 00:34:01,009 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-05-22 00:34:01,010 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:34:00" (1/1) ... [2021-05-22 00:34:01,011 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@1393323b and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01, skipping insertion in model container [2021-05-22 00:34:01,011 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 22.05 12:34:00" (1/1) ... [2021-05-22 00:34:01,017 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-05-22 00:34:01,063 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-05-22 00:34:01,373 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i[29949,29962] [2021-05-22 00:34:01,401 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:34:01,413 INFO L203 MainTranslator]: Completed pre-run [2021-05-22 00:34:01,460 WARN L224 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/goblint-regression/28-race_reach_20-callback_racefree.i[29949,29962] [2021-05-22 00:34:01,467 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-05-22 00:34:01,538 INFO L208 MainTranslator]: Completed translation [2021-05-22 00:34:01,539 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01 WrapperNode [2021-05-22 00:34:01,539 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-05-22 00:34:01,540 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2021-05-22 00:34:01,540 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2021-05-22 00:34:01,540 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2021-05-22 00:34:01,545 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,574 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,603 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2021-05-22 00:34:01,604 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-05-22 00:34:01,604 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-05-22 00:34:01,604 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-05-22 00:34:01,611 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,611 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,628 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,629 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,633 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,645 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,646 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... [2021-05-22 00:34:01,649 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-05-22 00:34:01,649 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-05-22 00:34:01,649 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-05-22 00:34:01,649 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-05-22 00:34:01,650 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (1/1) ... No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 1 with z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-05-22 00:34:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2021-05-22 00:34:01,719 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2021-05-22 00:34:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure #PthreadsMutexLock [2021-05-22 00:34:01,720 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-05-22 00:34:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure t_fun [2021-05-22 00:34:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure t_fun [2021-05-22 00:34:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-05-22 00:34:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2021-05-22 00:34:01,722 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-05-22 00:34:01,722 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-05-22 00:34:01,724 WARN L209 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2021-05-22 00:34:02,145 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-05-22 00:34:02,145 INFO L299 CfgBuilder]: Removed 23 assume(true) statements. [2021-05-22 00:34:02,146 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:34:02 BoogieIcfgContainer [2021-05-22 00:34:02,146 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-05-22 00:34:02,148 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-05-22 00:34:02,148 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-05-22 00:34:02,150 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-05-22 00:34:02,150 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 22.05 12:34:00" (1/3) ... [2021-05-22 00:34:02,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e50f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:34:02, skipping insertion in model container [2021-05-22 00:34:02,151 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 22.05 12:34:01" (2/3) ... [2021-05-22 00:34:02,151 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@2e50f03d and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 22.05 12:34:02, skipping insertion in model container [2021-05-22 00:34:02,152 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 22.05 12:34:02" (3/3) ... [2021-05-22 00:34:02,153 INFO L111 eAbstractionObserver]: Analyzing ICFG 28-race_reach_20-callback_racefree.i [2021-05-22 00:34:02,158 WARN L148 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2021-05-22 00:34:02,158 INFO L214 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-05-22 00:34:02,158 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 1 error locations. [2021-05-22 00:34:02,159 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2021-05-22 00:34:02,212 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,213 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,213 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,213 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,213 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,214 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,214 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,215 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,216 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,216 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,217 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,219 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,219 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,219 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,220 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of1ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,220 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of1ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:02,236 INFO L149 ThreadInstanceAdder]: Constructed 1 joinOtherThreadTransitions. [2021-05-22 00:34:02,254 INFO L255 AbstractCegarLoop]: Starting to check reachability of 2 error locations. [2021-05-22 00:34:02,270 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:34:02,270 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:34:02,270 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:34:02,271 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:34:02,271 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:34:02,271 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:34:02,271 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:34:02,271 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:34:02,281 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 134 transitions, 276 flow [2021-05-22 00:34:02,378 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1266 states, 1259 states have (on average 2.1906274821286735) internal successors, (2758), 1265 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:02,383 INFO L276 IsEmpty]: Start isEmpty. Operand has 1266 states, 1259 states have (on average 2.1906274821286735) internal successors, (2758), 1265 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:02,397 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-22 00:34:02,397 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:02,398 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:34:02,398 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:02,406 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:02,407 INFO L82 PathProgramCache]: Analyzing trace with hash -1069754010, now seen corresponding path program 1 times [2021-05-22 00:34:02,413 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:02,414 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [262076251] [2021-05-22 00:34:02,414 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:02,559 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:02,722 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:02,722 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:02,723 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [262076251] [2021-05-22 00:34:02,723 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [262076251] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:34:02,723 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:34:02,723 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:34:02,724 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2058672146] [2021-05-22 00:34:02,727 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:34:02,727 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:02,737 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:34:02,738 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:34:02,742 INFO L87 Difference]: Start difference. First operand has 1266 states, 1259 states have (on average 2.1906274821286735) internal successors, (2758), 1265 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:02,882 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:02,883 INFO L93 Difference]: Finished difference Result 2136 states and 4010 transitions. [2021-05-22 00:34:02,883 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-22 00:34:02,884 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-22 00:34:02,885 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:02,903 INFO L225 Difference]: With dead ends: 2136 [2021-05-22 00:34:02,903 INFO L226 Difference]: Without dead ends: 768 [2021-05-22 00:34:02,905 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 40.5ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:34:02,931 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 768 states. [2021-05-22 00:34:02,995 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 768 to 768. [2021-05-22 00:34:02,998 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 768 states, 766 states have (on average 1.8733681462140992) internal successors, (1435), 767 states have internal predecessors, (1435), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:03,000 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 768 states to 768 states and 1435 transitions. [2021-05-22 00:34:03,001 INFO L78 Accepts]: Start accepts. Automaton has 768 states and 1435 transitions. Word has length 48 [2021-05-22 00:34:03,002 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:03,002 INFO L482 AbstractCegarLoop]: Abstraction has 768 states and 1435 transitions. [2021-05-22 00:34:03,002 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:03,002 INFO L276 IsEmpty]: Start isEmpty. Operand 768 states and 1435 transitions. [2021-05-22 00:34:03,005 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-05-22 00:34:03,005 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:03,005 INFO L521 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, 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] [2021-05-22 00:34:03,005 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2021-05-22 00:34:03,005 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:03,006 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:03,006 INFO L82 PathProgramCache]: Analyzing trace with hash -1656002248, now seen corresponding path program 1 times [2021-05-22 00:34:03,006 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:03,007 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [246790281] [2021-05-22 00:34:03,007 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:03,028 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:03,098 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:03,099 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:03,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [246790281] [2021-05-22 00:34:03,099 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [246790281] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:03,099 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [2045830691] [2021-05-22 00:34:03,100 INFO L95 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 [2021-05-22 00:34:03,202 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:03,204 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-22 00:34:03,210 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:34:03,439 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:03,439 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [2045830691] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:03,439 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:34:03,439 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-05-22 00:34:03,440 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1295839168] [2021-05-22 00:34:03,441 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-22 00:34:03,442 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:03,450 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-22 00:34:03,450 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-05-22 00:34:03,450 INFO L87 Difference]: Start difference. First operand 768 states and 1435 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:03,482 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:03,482 INFO L93 Difference]: Finished difference Result 74 states and 98 transitions. [2021-05-22 00:34:03,482 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-22 00:34:03,483 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-05-22 00:34:03,483 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:03,484 INFO L225 Difference]: With dead ends: 74 [2021-05-22 00:34:03,484 INFO L226 Difference]: Without dead ends: 0 [2021-05-22 00:34:03,484 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 48.6ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:34:03,484 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-22 00:34:03,485 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-22 00:34:03,485 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:03,485 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-22 00:34:03,486 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 74 [2021-05-22 00:34:03,486 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:03,486 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-22 00:34:03,486 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:03,486 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-22 00:34:03,486 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:34:03,709 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable1 [2021-05-22 00:34:03,710 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-22 00:34:03,711 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:34:03,712 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:34:03,713 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:34:03,713 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:34:03,713 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:34:03,713 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:34:03,713 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:34:03,713 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:34:03,713 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:34:03,716 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 122 places, 134 transitions, 276 flow [2021-05-22 00:34:03,747 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 1266 states, 1259 states have (on average 2.1906274821286735) internal successors, (2758), 1265 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:03,749 INFO L276 IsEmpty]: Start isEmpty. Operand has 1266 states, 1259 states have (on average 2.1906274821286735) internal successors, (2758), 1265 states have internal predecessors, (2758), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:03,754 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-22 00:34:03,754 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:03,754 INFO L521 BasicCegarLoop]: trace histogram [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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:34:03,755 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-05-22 00:34:03,755 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:03,755 INFO L82 PathProgramCache]: Analyzing trace with hash 1837717139, now seen corresponding path program 1 times [2021-05-22 00:34:03,755 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:03,755 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [445044389] [2021-05-22 00:34:03,755 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:03,783 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:34:03,784 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:34:03,799 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:34:03,799 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:34:03,825 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-22 00:34:03,826 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-22 00:34:03,826 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable2 [2021-05-22 00:34:03,826 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-05-22 00:34:03,826 WARN L242 ceAbstractionStarter]: 1 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-22 00:34:03,826 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 2 thread instances. [2021-05-22 00:34:03,853 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,854 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,854 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,854 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,854 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,854 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,854 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,855 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,856 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,857 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,858 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,859 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,860 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,861 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,861 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,861 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,861 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,861 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,861 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,862 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,862 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,862 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,862 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,862 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,867 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,868 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,868 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of2ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,868 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of2ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:03,872 INFO L149 ThreadInstanceAdder]: Constructed 2 joinOtherThreadTransitions. [2021-05-22 00:34:03,872 INFO L255 AbstractCegarLoop]: Starting to check reachability of 3 error locations. [2021-05-22 00:34:03,873 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:34:03,874 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:34:03,874 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:34:03,874 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:34:03,874 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:34:03,874 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:34:03,874 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:34:03,874 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:34:03,881 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 142 places, 156 transitions, 330 flow [2021-05-22 00:34:05,218 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22614 states, 22597 states have (on average 3.297827145196265) internal successors, (74521), 22613 states have internal predecessors, (74521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:05,256 INFO L276 IsEmpty]: Start isEmpty. Operand has 22614 states, 22597 states have (on average 3.297827145196265) internal successors, (74521), 22613 states have internal predecessors, (74521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:05,257 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-22 00:34:05,258 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:05,258 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:34:05,258 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:05,259 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:05,259 INFO L82 PathProgramCache]: Analyzing trace with hash 1605575802, now seen corresponding path program 1 times [2021-05-22 00:34:05,259 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:05,259 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1197066710] [2021-05-22 00:34:05,259 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:05,287 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:05,377 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:05,377 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:05,377 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1197066710] [2021-05-22 00:34:05,377 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1197066710] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:34:05,377 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:34:05,377 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:34:05,377 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1387801861] [2021-05-22 00:34:05,378 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:34:05,378 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:05,378 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:34:05,378 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:34:05,420 INFO L87 Difference]: Start difference. First operand has 22614 states, 22597 states have (on average 3.297827145196265) internal successors, (74521), 22613 states have internal predecessors, (74521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:05,931 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:05,932 INFO L93 Difference]: Finished difference Result 36523 states and 102625 transitions. [2021-05-22 00:34:05,932 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-22 00:34:05,933 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-22 00:34:05,934 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:06,075 INFO L225 Difference]: With dead ends: 36523 [2021-05-22 00:34:06,075 INFO L226 Difference]: Without dead ends: 27460 [2021-05-22 00:34:06,076 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 86.6ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:34:06,343 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 27460 states. [2021-05-22 00:34:06,891 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 27460 to 20904. [2021-05-22 00:34:06,926 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20904 states, 20895 states have (on average 2.839243838238813) internal successors, (59326), 20903 states have internal predecessors, (59326), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:07,053 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20904 states to 20904 states and 59326 transitions. [2021-05-22 00:34:07,054 INFO L78 Accepts]: Start accepts. Automaton has 20904 states and 59326 transitions. Word has length 48 [2021-05-22 00:34:07,054 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:07,054 INFO L482 AbstractCegarLoop]: Abstraction has 20904 states and 59326 transitions. [2021-05-22 00:34:07,054 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:07,054 INFO L276 IsEmpty]: Start isEmpty. Operand 20904 states and 59326 transitions. [2021-05-22 00:34:07,056 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-22 00:34:07,057 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:07,057 INFO L521 BasicCegarLoop]: trace histogram [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, 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] [2021-05-22 00:34:07,057 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable3 [2021-05-22 00:34:07,057 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:07,058 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:07,058 INFO L82 PathProgramCache]: Analyzing trace with hash -900017019, now seen corresponding path program 1 times [2021-05-22 00:34:07,058 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:07,058 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1071066247] [2021-05-22 00:34:07,058 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:07,068 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:07,114 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-05-22 00:34:07,114 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:07,114 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1071066247] [2021-05-22 00:34:07,114 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1071066247] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:34:07,114 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:34:07,115 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:34:07,115 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1004974113] [2021-05-22 00:34:07,115 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:34:07,115 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:07,116 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:34:07,116 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:34:07,116 INFO L87 Difference]: Start difference. First operand 20904 states and 59326 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:07,541 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:07,541 INFO L93 Difference]: Finished difference Result 29222 states and 82058 transitions. [2021-05-22 00:34:07,542 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-22 00:34:07,542 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-05-22 00:34:07,542 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:07,613 INFO L225 Difference]: With dead ends: 29222 [2021-05-22 00:34:07,614 INFO L226 Difference]: Without dead ends: 24881 [2021-05-22 00:34:07,614 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 29.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:34:07,747 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24881 states. [2021-05-22 00:34:08,276 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24881 to 21339. [2021-05-22 00:34:08,328 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 21339 states, 21331 states have (on average 2.831840982607473) internal successors, (60406), 21338 states have internal predecessors, (60406), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:08,394 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 21339 states to 21339 states and 60406 transitions. [2021-05-22 00:34:08,395 INFO L78 Accepts]: Start accepts. Automaton has 21339 states and 60406 transitions. Word has length 58 [2021-05-22 00:34:08,395 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:08,395 INFO L482 AbstractCegarLoop]: Abstraction has 21339 states and 60406 transitions. [2021-05-22 00:34:08,396 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:08,396 INFO L276 IsEmpty]: Start isEmpty. Operand 21339 states and 60406 transitions. [2021-05-22 00:34:08,404 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-05-22 00:34:08,404 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:08,404 INFO L521 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, 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] [2021-05-22 00:34:08,405 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable4 [2021-05-22 00:34:08,405 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:08,405 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:08,405 INFO L82 PathProgramCache]: Analyzing trace with hash -1997839118, now seen corresponding path program 1 times [2021-05-22 00:34:08,405 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:08,405 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [429762321] [2021-05-22 00:34:08,406 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:08,415 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:08,445 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:08,446 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:08,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [429762321] [2021-05-22 00:34:08,446 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [429762321] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:08,446 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [675157109] [2021-05-22 00:34:08,446 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 3 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:34:08,547 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:08,548 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-22 00:34:08,553 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:34:08,695 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:08,695 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [675157109] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:08,695 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:34:08,696 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-05-22 00:34:08,696 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [547334877] [2021-05-22 00:34:08,697 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-22 00:34:08,697 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:08,698 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-22 00:34:08,698 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-05-22 00:34:08,698 INFO L87 Difference]: Start difference. First operand 21339 states and 60406 transitions. Second operand has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:09,036 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:09,037 INFO L93 Difference]: Finished difference Result 20744 states and 59247 transitions. [2021-05-22 00:34:09,037 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-22 00:34:09,038 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-05-22 00:34:09,038 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:09,092 INFO L225 Difference]: With dead ends: 20744 [2021-05-22 00:34:09,092 INFO L226 Difference]: Without dead ends: 20744 [2021-05-22 00:34:09,092 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 41.3ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:34:09,213 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 20744 states. [2021-05-22 00:34:09,583 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 20744 to 20744. [2021-05-22 00:34:09,612 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 20744 states, 20736 states have (on average 2.857204861111111) internal successors, (59247), 20743 states have internal predecessors, (59247), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:09,675 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 20744 states to 20744 states and 59247 transitions. [2021-05-22 00:34:09,675 INFO L78 Accepts]: Start accepts. Automaton has 20744 states and 59247 transitions. Word has length 74 [2021-05-22 00:34:09,675 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:09,675 INFO L482 AbstractCegarLoop]: Abstraction has 20744 states and 59247 transitions. [2021-05-22 00:34:09,676 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 12.0) internal successors, (84), 7 states have internal predecessors, (84), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:09,676 INFO L276 IsEmpty]: Start isEmpty. Operand 20744 states and 59247 transitions. [2021-05-22 00:34:09,688 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-05-22 00:34:09,689 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:09,689 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 1] [2021-05-22 00:34:09,904 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable5,3 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:34:09,905 INFO L430 AbstractCegarLoop]: === Iteration 4 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:34:09,906 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:09,906 INFO L82 PathProgramCache]: Analyzing trace with hash -1099773379, now seen corresponding path program 1 times [2021-05-22 00:34:09,906 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:09,906 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1728057646] [2021-05-22 00:34:09,906 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:09,920 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:09,985 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:09,985 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:34:09,985 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1728057646] [2021-05-22 00:34:09,985 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1728057646] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:09,986 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1609375267] [2021-05-22 00:34:09,986 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 4 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:34:10,071 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:34:10,072 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-22 00:34:10,074 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:34:10,223 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:34:10,224 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1609375267] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:34:10,224 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:34:10,224 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-05-22 00:34:10,224 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [2066432262] [2021-05-22 00:34:10,225 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-22 00:34:10,225 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:34:10,225 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-22 00:34:10,225 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:34:10,226 INFO L87 Difference]: Start difference. First operand 20744 states and 59247 transitions. Second operand has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:10,273 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:34:10,273 INFO L93 Difference]: Finished difference Result 1052 states and 2596 transitions. [2021-05-22 00:34:10,273 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-22 00:34:10,274 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-05-22 00:34:10,275 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:34:10,275 INFO L225 Difference]: With dead ends: 1052 [2021-05-22 00:34:10,275 INFO L226 Difference]: Without dead ends: 0 [2021-05-22 00:34:10,275 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 60.6ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-05-22 00:34:10,275 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-22 00:34:10,275 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-22 00:34:10,275 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:10,276 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-22 00:34:10,276 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 84 [2021-05-22 00:34:10,276 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:34:10,276 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-22 00:34:10,276 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 10.444444444444445) internal successors, (94), 9 states have internal predecessors, (94), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:10,276 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-22 00:34:10,276 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:34:10,498 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable6,4 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:34:10,498 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-22 00:34:10,499 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:34:10,499 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:34:10,499 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:34:10,499 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:34:10,499 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:34:10,499 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:34:10,499 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:34:10,499 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:34:10,499 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:34:10,501 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 142 places, 156 transitions, 330 flow [2021-05-22 00:34:11,518 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 22614 states, 22597 states have (on average 3.297827145196265) internal successors, (74521), 22613 states have internal predecessors, (74521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:11,548 INFO L276 IsEmpty]: Start isEmpty. Operand has 22614 states, 22597 states have (on average 3.297827145196265) internal successors, (74521), 22613 states have internal predecessors, (74521), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:34:11,551 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-22 00:34:11,551 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:34:11,551 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:34:11,551 INFO L430 AbstractCegarLoop]: === Iteration 1 === [ULTIMATE.startErr0INUSE_VIOLATION]=== [2021-05-22 00:34:11,551 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:34:11,552 INFO L82 PathProgramCache]: Analyzing trace with hash 1773765958, now seen corresponding path program 1 times [2021-05-22 00:34:11,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:34:11,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1213155493] [2021-05-22 00:34:11,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:34:11,563 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:34:11,563 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:34:11,572 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-05-22 00:34:11,572 INFO L223 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-05-22 00:34:11,581 INFO L173 FreeRefinementEngine]: Strategy CAMEL found a feasible trace [2021-05-22 00:34:11,581 INFO L622 BasicCegarLoop]: Counterexample might be feasible [2021-05-22 00:34:11,581 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable7 [2021-05-22 00:34:11,581 INFO L315 ceAbstractionStarter]: Result for error location InUseError was UNSAFE (2/2) [2021-05-22 00:34:11,581 WARN L242 ceAbstractionStarter]: 2 thread instances were not sufficient, I will increase this number and restart the analysis [2021-05-22 00:34:11,581 INFO L478 ceAbstractionStarter]: Constructing petrified ICFG for 3 thread instances. [2021-05-22 00:34:11,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,595 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,595 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,595 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,596 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,597 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,598 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,599 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,600 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#in~arg.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,601 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,602 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,603 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe |t_funThread1of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,604 WARN L313 ript$VariableManager]: TermVariabe t_funThread1of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe |t_funThread2of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,610 WARN L313 ript$VariableManager]: TermVariabe t_funThread2of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet14| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,611 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.base| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,612 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0___VERIFIER_assert_~cond not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#t~nondet13| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0___VERIFIER_assert_#in~cond| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,612 WARN L313 ript$VariableManager]: TermVariabe |t_funThread3of3ForFork0_#res.offset| not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,612 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.offset not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,612 WARN L313 ript$VariableManager]: TermVariabe t_funThread3of3ForFork0_~arg.base not constructed by VariableManager. Cannot ensure absence of name clashes. [2021-05-22 00:34:11,618 INFO L149 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2021-05-22 00:34:11,618 INFO L255 AbstractCegarLoop]: Starting to check reachability of 4 error locations. [2021-05-22 00:34:11,619 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:34:11,619 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:34:11,619 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:34:11,619 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:34:11,619 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:34:11,619 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:34:11,619 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:34:11,619 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == AllErrorsAtOnce======== [2021-05-22 00:34:11,621 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 162 places, 178 transitions, 386 flow [2021-05-22 00:38:50,176 INFO L122 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 411324 states, 411281 states have (on average 4.395194526370049) internal successors, (1807660), 411323 states have internal predecessors, (1807660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:38:50,708 INFO L276 IsEmpty]: Start isEmpty. Operand has 411324 states, 411281 states have (on average 4.395194526370049) internal successors, (1807660), 411323 states have internal predecessors, (1807660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:38:50,708 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 49 [2021-05-22 00:38:50,709 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:38:50,709 INFO L521 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:38:50,709 INFO L430 AbstractCegarLoop]: === Iteration 1 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:38:50,709 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:38:50,709 INFO L82 PathProgramCache]: Analyzing trace with hash 1879280270, now seen corresponding path program 1 times [2021-05-22 00:38:50,709 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:38:50,709 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1868805257] [2021-05-22 00:38:50,710 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:38:50,716 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:38:50,752 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:38:50,753 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:38:50,753 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1868805257] [2021-05-22 00:38:50,753 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1868805257] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:38:50,753 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:38:50,753 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:38:50,753 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1643052732] [2021-05-22 00:38:50,753 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:38:50,753 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:38:50,754 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:38:50,754 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:38:51,246 INFO L87 Difference]: Start difference. First operand has 411324 states, 411281 states have (on average 4.395194526370049) internal successors, (1807660), 411323 states have internal predecessors, (1807660), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Second operand has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:38:57,942 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:38:57,943 INFO L93 Difference]: Finished difference Result 630826 states and 2356641 transitions. [2021-05-22 00:38:57,943 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-22 00:38:57,943 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 48 [2021-05-22 00:38:57,943 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:39:01,267 INFO L225 Difference]: With dead ends: 630826 [2021-05-22 00:39:01,267 INFO L226 Difference]: Without dead ends: 573019 [2021-05-22 00:39:01,267 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 23.8ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:39:12,873 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 573019 states. [2021-05-22 00:39:24,926 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 573019 to 412584. [2021-05-22 00:39:25,630 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 412584 states, 412555 states have (on average 3.7703215328865243) internal successors, (1555465), 412583 states have internal predecessors, (1555465), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:39:28,210 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 412584 states to 412584 states and 1555465 transitions. [2021-05-22 00:39:28,210 INFO L78 Accepts]: Start accepts. Automaton has 412584 states and 1555465 transitions. Word has length 48 [2021-05-22 00:39:28,211 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:39:28,211 INFO L482 AbstractCegarLoop]: Abstraction has 412584 states and 1555465 transitions. [2021-05-22 00:39:28,211 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 9.6) internal successors, (48), 5 states have internal predecessors, (48), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:39:28,211 INFO L276 IsEmpty]: Start isEmpty. Operand 412584 states and 1555465 transitions. [2021-05-22 00:39:28,212 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2021-05-22 00:39:28,212 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:39:28,213 INFO L521 BasicCegarLoop]: trace histogram [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, 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] [2021-05-22 00:39:28,213 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable8 [2021-05-22 00:39:28,213 INFO L430 AbstractCegarLoop]: === Iteration 2 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:39:28,213 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:39:28,213 INFO L82 PathProgramCache]: Analyzing trace with hash 1173115501, now seen corresponding path program 1 times [2021-05-22 00:39:28,213 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:39:28,214 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1677788641] [2021-05-22 00:39:28,214 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:39:28,221 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:39:28,259 INFO L134 CoverageAnalysis]: Checked inductivity of 5 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 5 trivial. 0 not checked. [2021-05-22 00:39:28,259 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:39:28,260 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1677788641] [2021-05-22 00:39:28,260 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1677788641] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:39:28,260 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:39:28,260 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:39:28,260 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [395182510] [2021-05-22 00:39:28,260 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:39:28,260 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:39:28,261 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:39:28,261 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:39:28,261 INFO L87 Difference]: Start difference. First operand 412584 states and 1555465 transitions. Second operand has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:39:33,990 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:39:33,990 INFO L93 Difference]: Finished difference Result 613531 states and 2293420 transitions. [2021-05-22 00:39:33,990 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-22 00:39:33,990 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 58 [2021-05-22 00:39:33,991 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:39:37,199 INFO L225 Difference]: With dead ends: 613531 [2021-05-22 00:39:37,199 INFO L226 Difference]: Without dead ends: 583333 [2021-05-22 00:39:37,199 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 28.9ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:39:47,604 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 583333 states. [2021-05-22 00:40:00,117 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 583333 to 459561. [2021-05-22 00:40:01,240 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 459561 states, 459534 states have (on average 3.771290046003125) internal successors, (1733036), 459560 states have internal predecessors, (1733036), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:40:06,535 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 459561 states to 459561 states and 1733036 transitions. [2021-05-22 00:40:06,536 INFO L78 Accepts]: Start accepts. Automaton has 459561 states and 1733036 transitions. Word has length 58 [2021-05-22 00:40:06,537 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:40:06,537 INFO L482 AbstractCegarLoop]: Abstraction has 459561 states and 1733036 transitions. [2021-05-22 00:40:06,537 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 10.8) internal successors, (54), 5 states have internal predecessors, (54), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:40:06,537 INFO L276 IsEmpty]: Start isEmpty. Operand 459561 states and 1733036 transitions. [2021-05-22 00:40:06,550 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 69 [2021-05-22 00:40:06,551 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:40:06,551 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 2, 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, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-05-22 00:40:06,551 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable9 [2021-05-22 00:40:06,551 INFO L430 AbstractCegarLoop]: === Iteration 3 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:40:06,552 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:40:06,552 INFO L82 PathProgramCache]: Analyzing trace with hash -339548211, now seen corresponding path program 1 times [2021-05-22 00:40:06,552 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:40:06,552 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [340079787] [2021-05-22 00:40:06,552 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:40:06,582 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:40:06,721 INFO L134 CoverageAnalysis]: Checked inductivity of 20 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 20 trivial. 0 not checked. [2021-05-22 00:40:06,721 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:40:06,722 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [340079787] [2021-05-22 00:40:06,722 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [340079787] provided 1 perfect and 0 imperfect interpolant sequences [2021-05-22 00:40:06,722 INFO L226 FreeRefinementEngine]: Constructing automaton from 1 perfect and 0 imperfect interpolant sequences. [2021-05-22 00:40:06,722 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5] imperfect sequences [] total 5 [2021-05-22 00:40:06,722 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1642521998] [2021-05-22 00:40:06,722 INFO L462 AbstractCegarLoop]: Interpolant automaton has 5 states [2021-05-22 00:40:06,722 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:40:06,723 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-05-22 00:40:06,723 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-05-22 00:40:06,723 INFO L87 Difference]: Start difference. First operand 459561 states and 1733036 transitions. Second operand has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:40:14,153 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:40:14,154 INFO L93 Difference]: Finished difference Result 634557 states and 2376896 transitions. [2021-05-22 00:40:14,154 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 8 states. [2021-05-22 00:40:14,154 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 68 [2021-05-22 00:40:14,154 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:40:18,635 INFO L225 Difference]: With dead ends: 634557 [2021-05-22 00:40:18,635 INFO L226 Difference]: Without dead ends: 580374 [2021-05-22 00:40:18,635 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 8 GetRequests, 2 SyntacticMatches, 0 SemanticMatches, 6 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 2 ImplicationChecksByTransitivity, 50.1ms TimeCoverageRelationStatistics Valid=22, Invalid=34, Unknown=0, NotChecked=0, Total=56 [2021-05-22 00:40:29,960 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 580374 states. [2021-05-22 00:40:45,907 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 580374 to 475368. [2021-05-22 00:40:47,051 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 475368 states, 475342 states have (on average 3.774356147784122) internal successors, (1794110), 475367 states have internal predecessors, (1794110), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:40:51,102 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 475368 states to 475368 states and 1794110 transitions. [2021-05-22 00:40:51,103 INFO L78 Accepts]: Start accepts. Automaton has 475368 states and 1794110 transitions. Word has length 68 [2021-05-22 00:40:51,104 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:40:51,104 INFO L482 AbstractCegarLoop]: Abstraction has 475368 states and 1794110 transitions. [2021-05-22 00:40:51,104 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 5 states, 5 states have (on average 11.0) internal successors, (55), 5 states have internal predecessors, (55), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:40:51,104 INFO L276 IsEmpty]: Start isEmpty. Operand 475368 states and 1794110 transitions. [2021-05-22 00:40:51,138 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 75 [2021-05-22 00:40:51,139 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:40:51,139 INFO L521 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, 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] [2021-05-22 00:40:51,139 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable10 [2021-05-22 00:40:51,139 INFO L430 AbstractCegarLoop]: === Iteration 4 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:40:51,140 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:40:51,140 INFO L82 PathProgramCache]: Analyzing trace with hash 661114684, now seen corresponding path program 1 times [2021-05-22 00:40:51,140 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:40:51,140 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1158035932] [2021-05-22 00:40:51,140 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:40:51,158 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:40:51,807 WARN L205 SmtUtils]: Spent 629.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-05-22 00:40:51,844 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:40:51,845 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:40:51,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1158035932] [2021-05-22 00:40:51,845 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1158035932] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:40:51,845 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1777740042] [2021-05-22 00:40:51,845 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 5 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:40:52,088 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:40:52,089 INFO L263 TraceCheckSpWp]: Trace formula consists of 178 conjuncts, 4 conjunts are in the unsatisfiable core [2021-05-22 00:40:52,117 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:40:52,322 INFO L134 CoverageAnalysis]: Checked inductivity of 1 backedges. 0 proven. 1 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:40:52,322 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1777740042] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:40:52,323 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:40:52,323 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5] total 7 [2021-05-22 00:40:52,325 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [859956792] [2021-05-22 00:40:52,325 INFO L462 AbstractCegarLoop]: Interpolant automaton has 7 states [2021-05-22 00:40:52,326 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:40:52,326 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 7 interpolants. [2021-05-22 00:40:52,326 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=15, Invalid=27, Unknown=0, NotChecked=0, Total=42 [2021-05-22 00:40:52,326 INFO L87 Difference]: Start difference. First operand 475368 states and 1794110 transitions. Second operand has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:40:57,322 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:40:57,323 INFO L93 Difference]: Finished difference Result 474773 states and 1792951 transitions. [2021-05-22 00:40:57,324 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 6 states. [2021-05-22 00:40:57,324 INFO L78 Accepts]: Start accepts. Automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 74 [2021-05-22 00:40:57,325 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:41:01,684 INFO L225 Difference]: With dead ends: 474773 [2021-05-22 00:41:01,685 INFO L226 Difference]: Without dead ends: 474773 [2021-05-22 00:41:01,685 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 80 GetRequests, 73 SyntacticMatches, 0 SemanticMatches, 7 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 4 ImplicationChecksByTransitivity, 74.7ms TimeCoverageRelationStatistics Valid=28, Invalid=44, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:41:12,572 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 474773 states. [2021-05-22 00:41:22,159 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 474773 to 474773. [2021-05-22 00:41:23,878 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 474773 states, 474747 states have (on average 3.776645244730351) internal successors, (1792951), 474772 states have internal predecessors, (1792951), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:41:26,860 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 474773 states to 474773 states and 1792951 transitions. [2021-05-22 00:41:26,860 INFO L78 Accepts]: Start accepts. Automaton has 474773 states and 1792951 transitions. Word has length 74 [2021-05-22 00:41:26,861 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:41:26,861 INFO L482 AbstractCegarLoop]: Abstraction has 474773 states and 1792951 transitions. [2021-05-22 00:41:26,861 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 7 states, 7 states have (on average 12.714285714285714) internal successors, (89), 7 states have internal predecessors, (89), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:41:26,861 INFO L276 IsEmpty]: Start isEmpty. Operand 474773 states and 1792951 transitions. [2021-05-22 00:41:26,945 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 85 [2021-05-22 00:41:26,945 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:41:26,945 INFO L521 BasicCegarLoop]: trace histogram [2, 2, 2, 2, 2, 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, 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, 1] [2021-05-22 00:41:27,146 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable11,5 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:41:27,146 INFO L430 AbstractCegarLoop]: === Iteration 5 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:41:27,147 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:41:27,147 INFO L82 PathProgramCache]: Analyzing trace with hash -1320920963, now seen corresponding path program 1 times [2021-05-22 00:41:27,147 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:41:27,147 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [1558554189] [2021-05-22 00:41:27,147 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:41:27,165 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:41:27,203 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:41:27,204 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:41:27,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [1558554189] [2021-05-22 00:41:27,204 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [1558554189] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:41:27,204 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [439051332] [2021-05-22 00:41:27,204 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 6 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:41:27,307 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:41:27,308 INFO L263 TraceCheckSpWp]: Trace formula consists of 197 conjuncts, 6 conjunts are in the unsatisfiable core [2021-05-22 00:41:27,310 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:41:27,449 INFO L134 CoverageAnalysis]: Checked inductivity of 12 backedges. 0 proven. 12 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:41:27,450 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [439051332] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:41:27,450 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:41:27,450 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [7, 7] total 9 [2021-05-22 00:41:27,450 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1724801415] [2021-05-22 00:41:27,450 INFO L462 AbstractCegarLoop]: Interpolant automaton has 9 states [2021-05-22 00:41:27,451 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:41:27,451 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 9 interpolants. [2021-05-22 00:41:27,451 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=24, Invalid=48, Unknown=0, NotChecked=0, Total=72 [2021-05-22 00:41:27,452 INFO L87 Difference]: Start difference. First operand 474773 states and 1792951 transitions. Second operand has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:41:32,310 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:41:32,310 INFO L93 Difference]: Finished difference Result 458238 states and 1744780 transitions. [2021-05-22 00:41:32,311 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 9 states. [2021-05-22 00:41:32,311 INFO L78 Accepts]: Start accepts. Automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 84 [2021-05-22 00:41:32,311 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:41:36,546 INFO L225 Difference]: With dead ends: 458238 [2021-05-22 00:41:36,546 INFO L226 Difference]: Without dead ends: 458238 [2021-05-22 00:41:36,546 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 94 GetRequests, 83 SyntacticMatches, 0 SemanticMatches, 11 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 16 ImplicationChecksByTransitivity, 51.2ms TimeCoverageRelationStatistics Valid=55, Invalid=101, Unknown=0, NotChecked=0, Total=156 [2021-05-22 00:41:47,454 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 458238 states. [2021-05-22 00:41:57,301 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 458238 to 458238. [2021-05-22 00:41:58,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 458238 states, 458212 states have (on average 3.807800755981947) internal successors, (1744780), 458237 states have internal predecessors, (1744780), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:42:00,977 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 458238 states to 458238 states and 1744780 transitions. [2021-05-22 00:42:00,978 INFO L78 Accepts]: Start accepts. Automaton has 458238 states and 1744780 transitions. Word has length 84 [2021-05-22 00:42:00,978 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:42:00,978 INFO L482 AbstractCegarLoop]: Abstraction has 458238 states and 1744780 transitions. [2021-05-22 00:42:00,978 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 9 states, 9 states have (on average 11.0) internal successors, (99), 9 states have internal predecessors, (99), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:42:00,978 INFO L276 IsEmpty]: Start isEmpty. Operand 458238 states and 1744780 transitions. [2021-05-22 00:42:01,152 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 95 [2021-05-22 00:42:01,152 INFO L513 BasicCegarLoop]: Found error trace [2021-05-22 00:42:01,153 INFO L521 BasicCegarLoop]: trace histogram [3, 3, 3, 3, 3, 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, 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, 1] [2021-05-22 00:42:01,375 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 z3 -smt2 -in SMTLIB2_COMPLIANT=true,SelfDestructingSolverStorable12 [2021-05-22 00:42:01,375 INFO L430 AbstractCegarLoop]: === Iteration 6 === [t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION, t_funErr0ASSERT_VIOLATIONERROR_FUNCTION]=== [2021-05-22 00:42:01,376 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-05-22 00:42:01,376 INFO L82 PathProgramCache]: Analyzing trace with hash 1376470109, now seen corresponding path program 1 times [2021-05-22 00:42:01,376 INFO L162 FreeRefinementEngine]: Executing refinement strategy CAMEL [2021-05-22 00:42:01,376 INFO L361 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [999267441] [2021-05-22 00:42:01,376 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-05-22 00:42:01,390 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:42:01,455 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:42:01,455 INFO L179 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2021-05-22 00:42:01,455 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [999267441] [2021-05-22 00:42:01,456 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [999267441] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:42:01,456 INFO L361 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [1462553920] [2021-05-22 00:42:01,456 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 Starting monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) Waiting until toolchain timeout for monitored process 7 with z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:42:01,548 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-05-22 00:42:01,549 INFO L263 TraceCheckSpWp]: Trace formula consists of 216 conjuncts, 8 conjunts are in the unsatisfiable core [2021-05-22 00:42:01,550 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-05-22 00:42:02,266 WARN L205 SmtUtils]: Spent 588.00 ms on a formula simplification that was a NOOP. DAG size: 1 [2021-05-22 00:42:02,297 INFO L134 CoverageAnalysis]: Checked inductivity of 33 backedges. 0 proven. 33 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-05-22 00:42:02,297 INFO L200 FreeRefinementEngine]: IpTcStrategyModuleZ3 [1462553920] provided 0 perfect and 1 imperfect interpolant sequences [2021-05-22 00:42:02,297 INFO L226 FreeRefinementEngine]: Constructing automaton from 0 perfect and 2 imperfect interpolant sequences. [2021-05-22 00:42:02,297 INFO L239 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [9, 9] total 11 [2021-05-22 00:42:02,298 INFO L155 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1237501463] [2021-05-22 00:42:02,298 INFO L462 AbstractCegarLoop]: Interpolant automaton has 11 states [2021-05-22 00:42:02,298 INFO L142 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2021-05-22 00:42:02,298 INFO L142 InterpolantAutomaton]: Constructing interpolant automaton starting with 11 interpolants. [2021-05-22 00:42:02,299 INFO L144 InterpolantAutomaton]: CoverageRelationStatistics Valid=35, Invalid=75, Unknown=0, NotChecked=0, Total=110 [2021-05-22 00:42:02,299 INFO L87 Difference]: Start difference. First operand 458238 states and 1744780 transitions. Second operand has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:42:02,433 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-05-22 00:42:02,433 INFO L93 Difference]: Finished difference Result 18314 states and 63586 transitions. [2021-05-22 00:42:02,433 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 12 states. [2021-05-22 00:42:02,433 INFO L78 Accepts]: Start accepts. Automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) Word has length 94 [2021-05-22 00:42:02,434 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-05-22 00:42:02,434 INFO L225 Difference]: With dead ends: 18314 [2021-05-22 00:42:02,434 INFO L226 Difference]: Without dead ends: 0 [2021-05-22 00:42:02,434 INFO L777 BasicCegarLoop]: 0 DeclaredPredicates, 108 GetRequests, 93 SyntacticMatches, 0 SemanticMatches, 15 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 39 ImplicationChecksByTransitivity, 73.3ms TimeCoverageRelationStatistics Valid=92, Invalid=180, Unknown=0, NotChecked=0, Total=272 [2021-05-22 00:42:02,434 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 0 states. [2021-05-22 00:42:02,434 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 0 to 0. [2021-05-22 00:42:02,434 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 0 states, 0 states have (on average 0.0) internal successors, (0), 0 states have internal predecessors, (0), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:42:02,434 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 0 states to 0 states and 0 transitions. [2021-05-22 00:42:02,434 INFO L78 Accepts]: Start accepts. Automaton has 0 states and 0 transitions. Word has length 94 [2021-05-22 00:42:02,434 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-05-22 00:42:02,434 INFO L482 AbstractCegarLoop]: Abstraction has 0 states and 0 transitions. [2021-05-22 00:42:02,434 INFO L483 AbstractCegarLoop]: Interpolant automaton has has 11 states, 11 states have (on average 9.909090909090908) internal successors, (109), 11 states have internal predecessors, (109), 0 states have call successors, (0), 0 states have call predecessors, (0), 0 states have return successors, (0), 0 states have call predecessors, (0), 0 states have call successors, (0) [2021-05-22 00:42:02,435 INFO L276 IsEmpty]: Start isEmpty. Operand 0 states and 0 transitions. [2021-05-22 00:42:02,435 INFO L282 IsEmpty]: Finished isEmpty. No accepting run. [2021-05-22 00:42:02,636 WARN L519 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable13,7 z3 -smt2 -in SMTLIB2_COMPLIANT=true [2021-05-22 00:42:02,637 INFO L315 ceAbstractionStarter]: Result for error location AllErrorsAtOnce was SAFE (1/2) [2021-05-22 00:42:02,637 INFO L255 AbstractCegarLoop]: Starting to check reachability of 1 error locations. [2021-05-22 00:42:02,638 INFO L378 AbstractCegarLoop]: Interprodecural is true [2021-05-22 00:42:02,638 INFO L379 AbstractCegarLoop]: Hoare is false [2021-05-22 00:42:02,638 INFO L380 AbstractCegarLoop]: Compute interpolants for FPandBP [2021-05-22 00:42:02,638 INFO L381 AbstractCegarLoop]: Backedges is STRAIGHT_LINE [2021-05-22 00:42:02,638 INFO L382 AbstractCegarLoop]: Determinization is PREDICATE_ABSTRACTION [2021-05-22 00:42:02,638 INFO L383 AbstractCegarLoop]: Difference is false [2021-05-22 00:42:02,638 INFO L384 AbstractCegarLoop]: Minimize is MINIMIZE_SEVPA [2021-05-22 00:42:02,638 INFO L388 AbstractCegarLoop]: ======== Iteration 0==of CEGAR loop == InUseError======== [2021-05-22 00:42:02,639 INFO L100 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 162 places, 178 transitions, 386 flow Received shutdown request... [2021-05-22 00:46:06,891 WARN L547 AbstractCegarLoop]: Verification canceled [2021-05-22 00:46:06,891 INFO L315 ceAbstractionStarter]: Result for error location InUseError was TIMEOUT (2/2) [2021-05-22 00:46:06,892 INFO L246 ceAbstractionStarter]: Analysis of concurrent program completed with 3 thread instances [2021-05-22 00:46:06,897 WARN L196 ceAbstractionStarter]: Timeout [2021-05-22 00:46:06,897 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 22.05 12:46:06 BasicIcfg [2021-05-22 00:46:06,897 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-05-22 00:46:06,898 INFO L168 Benchmark]: Toolchain (without parser) took 725897.90 ms. Allocated memory was 350.2 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 312.8 MB in the beginning and 14.8 GB in the end (delta: -14.4 GB). Peak memory consumption was 8.5 GB. Max. memory is 16.0 GB. [2021-05-22 00:46:06,898 INFO L168 Benchmark]: CDTParser took 0.12 ms. Allocated memory is still 350.2 MB. Free memory was 330.9 MB in the beginning and 330.8 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 16.0 GB. [2021-05-22 00:46:06,898 INFO L168 Benchmark]: CACSL2BoogieTranslator took 536.61 ms. Allocated memory is still 350.2 MB. Free memory was 312.7 MB in the beginning and 312.9 MB in the end (delta: -205.1 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. [2021-05-22 00:46:06,898 INFO L168 Benchmark]: Boogie Procedure Inliner took 63.12 ms. Allocated memory is still 350.2 MB. Free memory was 312.9 MB in the beginning and 310.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:46:06,898 INFO L168 Benchmark]: Boogie Preprocessor took 44.93 ms. Allocated memory is still 350.2 MB. Free memory was 310.4 MB in the beginning and 308.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. [2021-05-22 00:46:06,899 INFO L168 Benchmark]: RCFGBuilder took 497.22 ms. Allocated memory is still 350.2 MB. Free memory was 308.7 MB in the beginning and 277.3 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. [2021-05-22 00:46:06,899 INFO L168 Benchmark]: TraceAbstraction took 724749.63 ms. Allocated memory was 350.2 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 277.3 MB in the beginning and 14.8 GB in the end (delta: -14.5 GB). Peak memory consumption was 8.5 GB. Max. memory is 16.0 GB. [2021-05-22 00:46:06,901 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.12 ms. Allocated memory is still 350.2 MB. Free memory was 330.9 MB in the beginning and 330.8 MB in the end (delta: 77.7 kB). There was no memory consumed. Max. memory is 16.0 GB. * CACSL2BoogieTranslator took 536.61 ms. Allocated memory is still 350.2 MB. Free memory was 312.7 MB in the beginning and 312.9 MB in the end (delta: -205.1 kB). Peak memory consumption was 6.7 MB. Max. memory is 16.0 GB. * Boogie Procedure Inliner took 63.12 ms. Allocated memory is still 350.2 MB. Free memory was 312.9 MB in the beginning and 310.4 MB in the end (delta: 2.5 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * Boogie Preprocessor took 44.93 ms. Allocated memory is still 350.2 MB. Free memory was 310.4 MB in the beginning and 308.7 MB in the end (delta: 1.6 MB). Peak memory consumption was 2.1 MB. Max. memory is 16.0 GB. * RCFGBuilder took 497.22 ms. Allocated memory is still 350.2 MB. Free memory was 308.7 MB in the beginning and 277.3 MB in the end (delta: 31.5 MB). Peak memory consumption was 31.5 MB. Max. memory is 16.0 GB. * TraceAbstraction took 724749.63 ms. Allocated memory was 350.2 MB in the beginning and 16.0 GB in the end (delta: 15.6 GB). Free memory was 277.3 MB in the beginning and 14.8 GB in the end (delta: -14.5 GB). Peak memory consumption was 8.5 GB. Max. memory is 16.0 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - PositiveResult [Line: 685]: call to reach_error is unreachable For all program executions holds that call to reach_error is unreachable at this location - StatisticsResult: Ultimate Automizer benchmark data with 1 thread instances CFG has 3 procedures, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 1441.5ms, OverallIterations: 2, TraceHistogramMax: 1, EmptinessCheckTime: 21.5ms, AutomataDifference: 219.1ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 107.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 296 SDtfs, 386 SDslu, 639 SDs, 0 SdLazy, 44 SolverSat, 4 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 44.6ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 88 GetRequests, 75 SyntacticMatches, 0 SemanticMatches, 13 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 6 ImplicationChecksByTransitivity, 89.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=0, InterpolantAutomatonStates: 14, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 85.7ms AutomataMinimizationTime, 2 MinimizatonAttempts, 0 StatesRemovedByMinimization, 0 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 32.3ms SsaConstructionTime, 108.6ms SatisfiabilityAnalysisTime, 466.4ms InterpolantComputationTime, 196 NumberOfCodeBlocks, 196 NumberOfCodeBlocksAsserted, 3 NumberOfCheckSat, 193 ConstructedInterpolants, 0 QuantifiedInterpolants, 308 SizeOfPredicates, 2 NumberOfNonLiveVariables, 178 ConjunctsInSsa, 4 ConjunctsInUnsatCore, 3 InterpolantComputations, 1 PerfectInterpolantSequences, 0/2 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 2 thread instances CFG has 4 procedures, 156 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 6624.8ms, OverallIterations: 4, TraceHistogramMax: 2, EmptinessCheckTime: 63.1ms, AutomataDifference: 1641.7ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1343.6ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 846 SDtfs, 1302 SDslu, 2052 SDs, 0 SdLazy, 126 SolverSat, 9 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 202.3ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 190 GetRequests, 160 SyntacticMatches, 0 SemanticMatches, 30 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 24 ImplicationChecksByTransitivity, 218.6ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22614occurred in iteration=0, InterpolantAutomatonStates: 31, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 2340.8ms AutomataMinimizationTime, 4 MinimizatonAttempts, 10098 StatesRemovedByMinimization, 2 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 43.1ms SsaConstructionTime, 90.7ms SatisfiabilityAnalysisTime, 527.2ms InterpolantComputationTime, 422 NumberOfCodeBlocks, 422 NumberOfCodeBlocksAsserted, 6 NumberOfCheckSat, 416 ConstructedInterpolants, 0 QuantifiedInterpolants, 738 SizeOfPredicates, 6 NumberOfNonLiveVariables, 375 ConjunctsInSsa, 10 ConjunctsInUnsatCore, 6 InterpolantComputations, 2 PerfectInterpolantSequences, 5/31 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data with 3 thread instances CFG has 5 procedures, 174 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: SAFE, OverallTime: 471017.8ms, OverallIterations: 6, TraceHistogramMax: 3, EmptinessCheckTime: 840.7ms, AutomataDifference: 49956.2ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 278557.2ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 1528 SDtfs, 2584 SDslu, 4179 SDs, 0 SdLazy, 247 SolverSat, 15 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 804.2ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 306 GetRequests, 255 SyntacticMatches, 0 SemanticMatches, 51 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 65 ImplicationChecksByTransitivity, 302.2ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=475368occurred in iteration=3, InterpolantAutomatonStates: 51, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 138353.3ms AutomataMinimizationTime, 6 MinimizatonAttempts, 389213 StatesRemovedByMinimization, 3 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 84.6ms SsaConstructionTime, 151.0ms SatisfiabilityAnalysisTime, 2100.4ms InterpolantComputationTime, 678 NumberOfCodeBlocks, 678 NumberOfCodeBlocksAsserted, 9 NumberOfCheckSat, 669 ConstructedInterpolants, 0 QuantifiedInterpolants, 1242 SizeOfPredicates, 12 NumberOfNonLiveVariables, 591 ConjunctsInSsa, 18 ConjunctsInUnsatCore, 9 InterpolantComputations, 3 PerfectInterpolantSequences, 25/117 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 1 thread instances CFG has 3 procedures, 138 locations, 3 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 113.5ms, OverallIterations: 1, TraceHistogramMax: 2, EmptinessCheckTime: 7.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 33.9ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=1266occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 5.3ms SsaConstructionTime, 13.1ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 48 NumberOfCodeBlocks, 48 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 2 thread instances CFG has 4 procedures, 156 locations, 4 error locations. Started 1 CEGAR loops. VerificationResult: UNSAFE, OverallTime: 1082.0ms, OverallIterations: 1, TraceHistogramMax: 3, EmptinessCheckTime: 32.1ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 1019.1ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=22614occurred in iteration=0, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 1.2ms SsaConstructionTime, 7.7ms SatisfiabilityAnalysisTime, 0.0ms InterpolantComputationTime, 58 NumberOfCodeBlocks, 58 NumberOfCodeBlocksAsserted, 1 NumberOfCheckSat, 0 ConstructedInterpolants, 0 QuantifiedInterpolants, 0 SizeOfPredicates, 0 NumberOfNonLiveVariables, 0 ConjunctsInSsa, 0 ConjunctsInUnsatCore, 0 InterpolantComputations, 0 PerfectInterpolantSequences, 0/0 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available - StatisticsResult: Ultimate Automizer benchmark data for thread instance sufficiency with 3 thread instances CFG has 5 procedures, 174 locations, 5 error locations. Started 1 CEGAR loops. VerificationResult: TIMEOUT, OverallTime: 244253.7ms, OverallIterations: 0, TraceHistogramMax: 0, EmptinessCheckTime: 0.0ms, AutomataDifference: 0.0ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 244253.0ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: No data available, PredicateUnifierStatistics: No data available, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=-1occurred in iteration=-1, InterpolantAutomatonStates: 0, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: No data available, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: No data available, ReuseStatistics: No data available RESULT: Ultimate proved your program to be correct! Completed graceful shutdown