/usr/bin/java -Xmx8000000000 -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.epf -tc ../../../trunk/examples/toolchains/AutomizerCInline.xml --cacsl2boogietranslator.check.unreachability.of.error.function.in.sv-comp.mode false --cacsl2boogietranslator.check.absence.of.signed.integer.overflows true -i ../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c -------------------------------------------------------------------------------- This is Ultimate 0.2.2-dev-53ca081-m [2022-09-16 10:57:52,801 INFO L177 SettingsManager]: Resetting all preferences to default values... [2022-09-16 10:57:52,802 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2022-09-16 10:57:52,837 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2022-09-16 10:57:52,838 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2022-09-16 10:57:52,839 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2022-09-16 10:57:52,840 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2022-09-16 10:57:52,842 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2022-09-16 10:57:52,843 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2022-09-16 10:57:52,844 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2022-09-16 10:57:52,845 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2022-09-16 10:57:52,847 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2022-09-16 10:57:52,847 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2022-09-16 10:57:52,853 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2022-09-16 10:57:52,855 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2022-09-16 10:57:52,858 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2022-09-16 10:57:52,859 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2022-09-16 10:57:52,859 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2022-09-16 10:57:52,861 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2022-09-16 10:57:52,862 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2022-09-16 10:57:52,863 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2022-09-16 10:57:52,868 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2022-09-16 10:57:52,869 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2022-09-16 10:57:52,870 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2022-09-16 10:57:52,872 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2022-09-16 10:57:52,873 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2022-09-16 10:57:52,873 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2022-09-16 10:57:52,874 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2022-09-16 10:57:52,874 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2022-09-16 10:57:52,875 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2022-09-16 10:57:52,875 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2022-09-16 10:57:52,875 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2022-09-16 10:57:52,876 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2022-09-16 10:57:52,876 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2022-09-16 10:57:52,877 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2022-09-16 10:57:52,877 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2022-09-16 10:57:52,878 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2022-09-16 10:57:52,878 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2022-09-16 10:57:52,878 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2022-09-16 10:57:52,879 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2022-09-16 10:57:52,879 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2022-09-16 10:57:52,886 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/settings/automizer/concurrent/svcomp-Reach-32bit-Automizer_Default-noMmResRef-FA-NoLbe.epf [2022-09-16 10:57:52,917 INFO L113 SettingsManager]: Loading preferences was successful [2022-09-16 10:57:52,917 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2022-09-16 10:57:52,918 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2022-09-16 10:57:52,918 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2022-09-16 10:57:52,919 INFO L136 SettingsManager]: Preferences of Boogie Procedure Inliner differ from their defaults: [2022-09-16 10:57:52,919 INFO L138 SettingsManager]: * Ignore calls to procedures called more than once=ONLY_FOR_SEQUENTIAL_PROGRAMS [2022-09-16 10:57:52,919 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2022-09-16 10:57:52,919 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2022-09-16 10:57:52,919 INFO L138 SettingsManager]: * Use SBE=true [2022-09-16 10:57:52,920 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2022-09-16 10:57:52,920 INFO L138 SettingsManager]: * sizeof long=4 [2022-09-16 10:57:52,920 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2022-09-16 10:57:52,921 INFO L138 SettingsManager]: * sizeof POINTER=4 [2022-09-16 10:57:52,921 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2022-09-16 10:57:52,921 INFO L138 SettingsManager]: * Pointer to allocated memory at dereference=IGNORE [2022-09-16 10:57:52,921 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2022-09-16 10:57:52,921 INFO L138 SettingsManager]: * Check array bounds for arrays that are off heap=IGNORE [2022-09-16 10:57:52,921 INFO L138 SettingsManager]: * sizeof long double=12 [2022-09-16 10:57:52,922 INFO L138 SettingsManager]: * Check if freed pointer was valid=false [2022-09-16 10:57:52,922 INFO L138 SettingsManager]: * Use constant arrays=true [2022-09-16 10:57:52,922 INFO L138 SettingsManager]: * Pointer base address is valid at dereference=IGNORE [2022-09-16 10:57:52,922 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2022-09-16 10:57:52,922 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2022-09-16 10:57:52,922 INFO L138 SettingsManager]: * To the following directory=./dump/ [2022-09-16 10:57:52,922 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2022-09-16 10:57:52,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:57:52,923 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2022-09-16 10:57:52,923 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2022-09-16 10:57:52,923 INFO L138 SettingsManager]: * Positions where we compute the Hoare Annotation=LoopsAndPotentialCycles [2022-09-16 10:57:52,923 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2022-09-16 10:57:52,923 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2022-09-16 10:57:52,923 INFO L138 SettingsManager]: * Apply one-shot large block encoding in concurrent analysis=false [2022-09-16 10:57:52,924 INFO L138 SettingsManager]: * Compute Hoare Annotation of negated interpolant automaton, abstraction and CFG=true [2022-09-16 10:57:52,924 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$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check unreachability of error function in SV-COMP mode -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Check absence of signed integer overflows -> true [2022-09-16 10:57:53,133 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2022-09-16 10:57:53,165 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2022-09-16 10:57:53,167 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2022-09-16 10:57:53,168 INFO L271 PluginConnector]: Initializing CDTParser... [2022-09-16 10:57:53,169 INFO L275 PluginConnector]: CDTParser initialized [2022-09-16 10:57:53,170 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../../../trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2022-09-16 10:57:53,222 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c92bad6/ce5e5231dd9f4751b81bb02431f56c48/FLAG160584ca3 [2022-09-16 10:57:53,617 INFO L306 CDTParser]: Found 1 translation units. [2022-09-16 10:57:53,618 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c [2022-09-16 10:57:53,623 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c92bad6/ce5e5231dd9f4751b81bb02431f56c48/FLAG160584ca3 [2022-09-16 10:57:53,634 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/26c92bad6/ce5e5231dd9f4751b81bb02431f56c48 [2022-09-16 10:57:53,636 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2022-09-16 10:57:53,637 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2022-09-16 10:57:53,639 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2022-09-16 10:57:53,640 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2022-09-16 10:57:53,643 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2022-09-16 10:57:53,644 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:53,644 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@2ff7eb68 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53, skipping insertion in model container [2022-09-16 10:57:53,645 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:53,661 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2022-09-16 10:57:53,684 INFO L178 MainTranslator]: Built tables and reachable declarations [2022-09-16 10:57:53,860 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-09-16 10:57:53,866 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:57:53,882 INFO L203 MainTranslator]: Completed pre-run [2022-09-16 10:57:53,921 WARN L230 ndardFunctionHandler]: Function reach_error is already implemented but we override the implementation for the call at /storage/repos/ultimate/trunk/examples/svcomp/weaver/popl20-bad-dot-product.wvr.c[2865,2878] [2022-09-16 10:57:53,925 INFO L210 PostProcessor]: Analyzing one entry point: main [2022-09-16 10:57:53,939 INFO L208 MainTranslator]: Completed translation [2022-09-16 10:57:53,939 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53 WrapperNode [2022-09-16 10:57:53,939 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2022-09-16 10:57:53,940 INFO L113 PluginConnector]: ------------------------Boogie Procedure Inliner---------------------------- [2022-09-16 10:57:53,940 INFO L271 PluginConnector]: Initializing Boogie Procedure Inliner... [2022-09-16 10:57:53,940 INFO L275 PluginConnector]: Boogie Procedure Inliner initialized [2022-09-16 10:57:53,946 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:53,954 INFO L185 PluginConnector]: Executing the observer Inliner from plugin Boogie Procedure Inliner for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:53,984 INFO L138 Inliner]: procedures = 26, calls = 55, calls flagged for inlining = 16, calls inlined = 22, statements flattened = 333 [2022-09-16 10:57:53,985 INFO L132 PluginConnector]: ------------------------ END Boogie Procedure Inliner---------------------------- [2022-09-16 10:57:53,985 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2022-09-16 10:57:53,986 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2022-09-16 10:57:53,986 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2022-09-16 10:57:53,993 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:53,993 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:53,998 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:53,998 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:54,023 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:54,029 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:54,031 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:54,034 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2022-09-16 10:57:54,035 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2022-09-16 10:57:54,035 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2022-09-16 10:57:54,035 INFO L275 PluginConnector]: RCFGBuilder initialized [2022-09-16 10:57:54,036 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (1/1) ... [2022-09-16 10:57:54,044 INFO L173 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2022-09-16 10:57:54,059 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:57:54,081 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2022-09-16 10:57:54,102 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2022-09-16 10:57:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocInit [2022-09-16 10:57:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2022-09-16 10:57:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure write~int [2022-09-16 10:57:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure read~int [2022-09-16 10:57:54,129 INFO L130 BoogieDeclarations]: Found specification of procedure thread1 [2022-09-16 10:57:54,129 INFO L138 BoogieDeclarations]: Found implementation of procedure thread1 [2022-09-16 10:57:54,130 INFO L130 BoogieDeclarations]: Found specification of procedure thread2 [2022-09-16 10:57:54,130 INFO L138 BoogieDeclarations]: Found implementation of procedure thread2 [2022-09-16 10:57:54,131 INFO L130 BoogieDeclarations]: Found specification of procedure thread3 [2022-09-16 10:57:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure thread3 [2022-09-16 10:57:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~int [2022-09-16 10:57:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_end [2022-09-16 10:57:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_atomic_begin [2022-09-16 10:57:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2022-09-16 10:57:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2022-09-16 10:57:54,132 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2022-09-16 10:57:54,132 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2022-09-16 10:57:54,134 WARN L208 CfgBuilder]: User set CodeBlockSize to SequenceOfStatements but program contains fork statements. Overwriting the user preferences and setting CodeBlockSize to SingleStatement [2022-09-16 10:57:54,291 INFO L234 CfgBuilder]: Building ICFG [2022-09-16 10:57:54,293 INFO L260 CfgBuilder]: Building CFG for each procedure with an implementation [2022-09-16 10:57:54,819 INFO L275 CfgBuilder]: Performing block encoding [2022-09-16 10:57:55,300 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2022-09-16 10:57:55,301 INFO L299 CfgBuilder]: Removed 8 assume(true) statements. [2022-09-16 10:57:55,305 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:57:55 BoogieIcfgContainer [2022-09-16 10:57:55,305 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2022-09-16 10:57:55,308 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2022-09-16 10:57:55,309 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2022-09-16 10:57:55,312 INFO L275 PluginConnector]: TraceAbstraction initialized [2022-09-16 10:57:55,312 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 16.09 10:57:53" (1/3) ... [2022-09-16 10:57:55,313 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55623a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:57:55, skipping insertion in model container [2022-09-16 10:57:55,313 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 16.09 10:57:53" (2/3) ... [2022-09-16 10:57:55,314 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@55623a42 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 16.09 10:57:55, skipping insertion in model container [2022-09-16 10:57:55,314 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 16.09 10:57:55" (3/3) ... [2022-09-16 10:57:55,318 INFO L112 eAbstractionObserver]: Analyzing ICFG popl20-bad-dot-product.wvr.c [2022-09-16 10:57:55,325 WARN L145 ceAbstractionStarter]: Switching off computation of Hoare annotation because input is a concurrent program [2022-09-16 10:57:55,332 INFO L203 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2022-09-16 10:57:55,332 INFO L162 ceAbstractionStarter]: Applying trace abstraction to program that has 34 error locations. [2022-09-16 10:57:55,332 INFO L515 ceAbstractionStarter]: Constructing petrified ICFG for 1 thread instances. [2022-09-16 10:57:55,460 INFO L144 ThreadInstanceAdder]: Constructed 3 joinOtherThreadTransitions. [2022-09-16 10:57:55,494 INFO L113 iNet2FiniteAutomaton]: Start petriNet2FiniteAutomaton. Operand has 291 places, 306 transitions, 636 flow [2022-09-16 10:58:02,710 INFO L135 iNet2FiniteAutomaton]: Finished petriNet2FiniteAutomaton. Result has 270736 states, 269402 states have (on average 4.020504673313487) internal successors, (1083132), 270735 states have internal predecessors, (1083132), 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) [2022-09-16 10:58:02,746 INFO L356 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2022-09-16 10:58:02,751 INFO L357 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=true, mAutomataTypeConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=LoopsAndPotentialCycles, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mPorIndependenceSettings=[Lde.uni_freiburg.informatik.ultimate.lib.tracecheckerutils.partialorder.independence.IndependenceSettings;@42b4984a, mLbeIndependenceSettings=[IndependenceType=SEMANTIC, AbstractionType=NONE, UseConditional=false, UseSemiCommutativity=true, Solver=Z3, SolverTimeout=1000ms] [2022-09-16 10:58:02,751 INFO L358 AbstractCegarLoop]: Starting to check reachability of 67 error locations. [2022-09-16 10:58:03,204 INFO L276 IsEmpty]: Start isEmpty. Operand has 270736 states, 269402 states have (on average 4.020504673313487) internal successors, (1083132), 270735 states have internal predecessors, (1083132), 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) [2022-09-16 10:58:03,210 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 59 [2022-09-16 10:58:03,211 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:03,211 INFO L195 NwaCegarLoop]: 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] [2022-09-16 10:58:03,212 INFO L420 AbstractCegarLoop]: === Iteration 1 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2022-09-16 10:58:03,216 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:03,216 INFO L85 PathProgramCache]: Analyzing trace with hash 362630567, now seen corresponding path program 1 times [2022-09-16 10:58:03,224 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:03,224 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [274167077] [2022-09-16 10:58:03,224 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:03,225 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:03,364 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:03,478 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:03,478 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:03,479 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [274167077] [2022-09-16 10:58:03,479 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [274167077] provided 1 perfect and 0 imperfect interpolant sequences [2022-09-16 10:58:03,479 INFO L184 FreeRefinementEngine]: Found 1 perfect and 0 imperfect interpolant sequences. [2022-09-16 10:58:03,480 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [3] imperfect sequences [] total 3 [2022-09-16 10:58:03,482 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1907795187] [2022-09-16 10:58:03,482 INFO L85 oduleStraightlineAll]: Using 1 perfect interpolants to construct interpolant automaton [2022-09-16 10:58:03,486 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 4 states [2022-09-16 10:58:03,486 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:03,518 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 4 interpolants. [2022-09-16 10:58:03,519 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=5, Invalid=7, Unknown=0, NotChecked=0, Total=12 [2022-09-16 10:58:04,765 INFO L87 Difference]: Start difference. First operand has 270736 states, 269402 states have (on average 4.020504673313487) internal successors, (1083132), 270735 states have internal predecessors, (1083132), 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 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-09-16 10:58:12,223 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:12,224 INFO L93 Difference]: Finished difference Result 465527 states and 1760705 transitions. [2022-09-16 10:58:12,227 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2022-09-16 10:58:12,228 INFO L78 Accepts]: Start accepts. Automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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 [2022-09-16 10:58:12,228 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:58:17,318 INFO L225 Difference]: With dead ends: 465527 [2022-09-16 10:58:17,318 INFO L226 Difference]: Without dead ends: 465177 [2022-09-16 10:58:17,320 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 4 GetRequests, 1 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 0.0s TimeCoverageRelationStatistics Valid=9, Invalid=11, Unknown=0, NotChecked=0, Total=20 [2022-09-16 10:58:17,323 INFO L413 NwaCegarLoop]: 226 mSDtfsCounter, 178 mSDsluCounter, 484 mSDsCounter, 0 mSdLazyCounter, 108 mSolverCounterSat, 19 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.1s Time, 0 mProtectedPredicate, 0 mProtectedAction, 178 SdHoareTripleChecker+Valid, 670 SdHoareTripleChecker+Invalid, 127 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 19 IncrementalHoareTripleChecker+Valid, 108 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.2s IncrementalHoareTripleChecker+Time [2022-09-16 10:58:17,323 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [178 Valid, 670 Invalid, 127 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [19 Valid, 108 Invalid, 0 Unknown, 0 Unchecked, 0.2s Time] [2022-09-16 10:58:18,830 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 465177 states. [2022-09-16 10:58:31,968 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 465177 to 232639. [2022-09-16 10:58:33,223 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232639 states, 231643 states have (on average 3.797990873887836) internal successors, (879778), 232638 states have internal predecessors, (879778), 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) [2022-09-16 10:58:35,574 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 232639 states to 232639 states and 879778 transitions. [2022-09-16 10:58:35,575 INFO L78 Accepts]: Start accepts. Automaton has 232639 states and 879778 transitions. Word has length 58 [2022-09-16 10:58:35,575 INFO L84 Accepts]: Finished accepts. word is rejected. [2022-09-16 10:58:35,575 INFO L495 AbstractCegarLoop]: Abstraction has 232639 states and 879778 transitions. [2022-09-16 10:58:35,576 INFO L496 AbstractCegarLoop]: INTERPOLANT automaton has has 4 states, 3 states have (on average 19.333333333333332) internal successors, (58), 4 states have internal predecessors, (58), 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) [2022-09-16 10:58:35,576 INFO L276 IsEmpty]: Start isEmpty. Operand 232639 states and 879778 transitions. [2022-09-16 10:58:35,577 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 68 [2022-09-16 10:58:35,578 INFO L187 NwaCegarLoop]: Found error trace [2022-09-16 10:58:35,578 INFO L195 NwaCegarLoop]: trace histogram [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] [2022-09-16 10:58:35,578 WARN L477 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: SelfDestructingSolverStorable0 [2022-09-16 10:58:35,578 INFO L420 AbstractCegarLoop]: === Iteration 2 === Targeting ULTIMATE.startErr0ASSERT_VIOLATIONINTEGER_OVERFLOW === [thread1Err8ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err0ASSERT_VIOLATIONINTEGER_OVERFLOW, thread1Err1ASSERT_VIOLATIONINTEGER_OVERFLOW (and 64 more)] === [2022-09-16 10:58:35,579 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2022-09-16 10:58:35,579 INFO L85 PathProgramCache]: Analyzing trace with hash -156937505, now seen corresponding path program 1 times [2022-09-16 10:58:35,579 INFO L118 FreeRefinementEngine]: Executing refinement strategy CAMEL [2022-09-16 10:58:35,579 INFO L333 FreeRefinementEngine]: Using trace check IpTcStrategyModuleSmtInterpolCraig [2118808512] [2022-09-16 10:58:35,580 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:35,580 INFO L127 SolverBuilder]: Constructing new instance of SMTInterpol with explicit timeout -1 ms and remaining time -1 ms [2022-09-16 10:58:35,610 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:35,662 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:35,662 INFO L136 FreeRefinementEngine]: Strategy CAMEL found an infeasible trace [2022-09-16 10:58:35,662 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleSmtInterpolCraig [2118808512] [2022-09-16 10:58:35,663 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleSmtInterpolCraig [2118808512] provided 0 perfect and 1 imperfect interpolant sequences [2022-09-16 10:58:35,663 INFO L333 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleZ3 [875880340] [2022-09-16 10:58:35,663 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2022-09-16 10:58:35,663 INFO L173 SolverBuilder]: Constructing external solver with command: z3 -smt2 -in SMTLIB2_COMPLIANT=true [2022-09-16 10:58:35,663 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2022-09-16 10:58:35,665 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (exit command is (exit), workingDir is null) [2022-09-16 10:58:35,673 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 -smt2 -in SMTLIB2_COMPLIANT=true (2)] Waiting until timeout for monitored process [2022-09-16 10:58:35,832 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2022-09-16 10:58:35,835 INFO L263 TraceCheckSpWp]: Trace formula consists of 163 conjuncts, 5 conjunts are in the unsatisfiable core [2022-09-16 10:58:35,840 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2022-09-16 10:58:35,926 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:35,927 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2022-09-16 10:58:35,988 INFO L134 CoverageAnalysis]: Checked inductivity of 6 backedges. 0 proven. 6 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2022-09-16 10:58:35,989 INFO L157 FreeRefinementEngine]: IpTcStrategyModuleZ3 [875880340] provided 0 perfect and 2 imperfect interpolant sequences [2022-09-16 10:58:35,989 INFO L184 FreeRefinementEngine]: Found 0 perfect and 3 imperfect interpolant sequences. [2022-09-16 10:58:35,989 INFO L197 FreeRefinementEngine]: Number of different interpolants: perfect sequences [] imperfect sequences [5, 5, 5] total 11 [2022-09-16 10:58:35,990 INFO L121 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1582455158] [2022-09-16 10:58:35,990 INFO L85 oduleStraightlineAll]: Using 3 imperfect interpolants to construct interpolant automaton [2022-09-16 10:58:35,991 INFO L571 AbstractCegarLoop]: INTERPOLANT automaton has 12 states [2022-09-16 10:58:35,991 INFO L100 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy CAMEL [2022-09-16 10:58:35,991 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 12 interpolants. [2022-09-16 10:58:35,992 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=41, Invalid=91, Unknown=0, NotChecked=0, Total=132 [2022-09-16 10:58:35,992 INFO L87 Difference]: Start difference. First operand 232639 states and 879778 transitions. Second operand has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 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) [2022-09-16 10:58:57,642 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2022-09-16 10:58:57,643 INFO L93 Difference]: Finished difference Result 1162837 states and 4398522 transitions. [2022-09-16 10:58:57,644 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 18 states. [2022-09-16 10:58:57,644 INFO L78 Accepts]: Start accepts. Automaton has has 12 states, 11 states have (on average 8.363636363636363) internal successors, (92), 12 states have internal predecessors, (92), 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 67 [2022-09-16 10:58:57,645 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2022-09-16 10:59:17,136 INFO L225 Difference]: With dead ends: 1162837 [2022-09-16 10:59:17,137 INFO L226 Difference]: Without dead ends: 1162837 [2022-09-16 10:59:17,137 INFO L412 NwaCegarLoop]: 0 DeclaredPredicates, 147 GetRequests, 127 SyntacticMatches, 0 SemanticMatches, 20 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 87 ImplicationChecksByTransitivity, 0.1s TimeCoverageRelationStatistics Valid=158, Invalid=304, Unknown=0, NotChecked=0, Total=462 [2022-09-16 10:59:17,154 INFO L413 NwaCegarLoop]: 219 mSDtfsCounter, 1256 mSDsluCounter, 1371 mSDsCounter, 0 mSdLazyCounter, 308 mSolverCounterSat, 51 mSolverCounterUnsat, 0 mSolverCounterUnknown, 0 mSolverCounterNotChecked, 0.3s Time, 0 mProtectedPredicate, 0 mProtectedAction, 1256 SdHoareTripleChecker+Valid, 1450 SdHoareTripleChecker+Invalid, 359 SdHoareTripleChecker+Unknown, 0 SdHoareTripleChecker+Unchecked, 0.0s SdHoareTripleChecker+Time, 51 IncrementalHoareTripleChecker+Valid, 308 IncrementalHoareTripleChecker+Invalid, 0 IncrementalHoareTripleChecker+Unknown, 0 IncrementalHoareTripleChecker+Unchecked, 0.4s IncrementalHoareTripleChecker+Time [2022-09-16 10:59:17,159 INFO L414 NwaCegarLoop]: SdHoareTripleChecker [1256 Valid, 1450 Invalid, 359 Unknown, 0 Unchecked, 0.0s Time], IncrementalHoareTripleChecker [51 Valid, 308 Invalid, 0 Unknown, 0 Unchecked, 0.4s Time] [2022-09-16 10:59:21,404 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 1162837 states. [2022-09-16 11:00:01,685 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 1162837 to 232691. [2022-09-16 11:00:02,469 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 232691 states, 231695 states have (on average 3.7974060726385983) internal successors, (879840), 232690 states have internal predecessors, (879840), 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)